Android Head Units

ATOTO Universal Android Head Unit: Scion tC Install, Part 1

Part 1 on a Scion tC: pop the dash trim, four 10 mm bolts, unplug the Pioneer radio, then wire the ATOTO harness and confirm audio, Wi-Fi and GPS before the backup camera and steering-wheel work in Part 2.

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Yes — you can install This kit on the Filmed on a Scion tC. The description's wiring harness is a Mobilistics WK-78 combo listed for select 2011–2017 Toyota, Scion and Subaru radios — confirm your plugs before you buy with a 17 min DIY job. Part 1 on a Scion tC: pop the dash trim, four 10 mm bolts, unplug.

Overview

John and a first-timer install an ATOTO universal Android head unit in a Scion tC as a Christmas gift. The clock/hazard trim pops with fingers — no pry tool required on this dash — then four 10 mm bolts free the factory Pioneer radio. They unplug the antenna, the usual aux/steering leads and a stubborn USB, and John points out the metal chassis and cooling fan on the new unit. Part 1 stays on the main power and audio harness, then they test audio settings, Wi-Fi and GPS (a Los Angeles-area route renders smoothly). He likes the screen versus the original radio, argues about brightness and color temperature, and flags steering-wheel controls and the backup camera as the work for Part 2. The description's first buy link is a tagged Amazon product page for the head unit, followed by the wiring harness, a universal trim piece, a backup camera and optional ATOTO SWC and Bluetooth OBD2 adapters.

Vehicle & fitment

Product
ATOTO universal Android head unit (Amazon product link in the description) with a Toyota/Scion/Subaru wiring harness and a universal double-DIN trim kit
Shown on
Scion tC (Christmas-gift install in the video; the ATOTO unit is a universal double-DIN)

Always confirm fitment for your exact year and trim with the seller before buying.

Tools & parts

Tools

  • Fingers or a plastic trim tool to pop the tC dash bezel
  • 10 mm socket for the four radio bolts
  • Something to cover the shift knob and surrounding trim so brackets do not scratch it

Parts

  • ATOTO universal Android head unit
  • Vehicle wiring harness and antenna adapter
  • Universal double-DIN trim / brackets
  • Backup camera and SWC adapter (Part 2)

Video chapters

Step by step

  1. 1

    What this part covers▶ 0:00

    John shows the ATOTO unit plus the extra wires for a reverse camera and a steering-wheel-control test. This is a Scion tC, being installed as a Christmas gift, and Part 1 is the radio swap plus power, audio, Wi-Fi and GPS.

  2. 2

    Pop the dash trim▶ 0:31

    The first-timer pulls the bezel with his fingers through the opening — no pry tool needed on this car. That exposes the clock plug (not the hazards) and the four bolts still holding the radio.

  3. 3

    Four 10 mm bolts, watch the brackets▶ 1:19

    The bolts are 10 mm, like most cars. John suggests covering the shift knob and nearby plastic; the radio brackets will scratch trim if you swing the unit out carelessly.

  4. 4

    Unplug the Pioneer radio▶ 1:52

    The factory unit is a Pioneer. Unplug the two main connectors, the antenna, and what is usually aux and steering-wheel leads. The USB connector is stubborn — John helps get it free. This car has no satellite antenna.

  5. 5

    Look at the new chassis▶ 2:43

    The ATOTO has real weight, a metal body and a small cooling fan. From here they move on to the main power and audio harness rather than the camera or steering-wheel work.

  6. 6

    GPS, Wi-Fi and the screen▶ 15:24

    With power and audio in, they test GPS (a Southern California route, including a six-hour drive to Los Angeles, renders smoothly) and compare the new 7-inch-class screen to the original radio. Brightness is high; color temperature looks a little blue versus a phone. Steering-wheel controls and the backup camera are left for Part 2.

Wiring notes

FAQ

What vehicle does this head unit fit?

It is shown for the Filmed on a Scion tC. The description's wiring harness is a Mobilistics WK-78 combo listed for select 2011–2017 Toyota, Scion and Subaru radios — confirm your plugs before you buy. Part 1 is radio removal, the main power/audio harness, audio settings, Wi-Fi and GPS. Part 2 covers fit and finish, the backup camera and steering-wheel controls Always confirm your exact year, trim and factory audio with the seller.

How long does the install take?

John's full video is 17 min. Plan on that much time for a careful DIY install, plus extra if you are new to dash work.

What tools do I need?

Tools called out in the guide: Fingers or a plastic trim tool to pop the tC dash bezel; 10 mm socket for the four radio bolts; Something to cover the shift knob and surrounding trim so brackets do not scratch it.

Does it support wireless CarPlay or Android Auto?

Check the product listing for wired vs wireless CarPlay / Android Auto before you buy; John shows what worked in the video.

Where do I get the parts?

Use the buy links on this page for the unit and any harnesses John used. Some links are affiliate links.

Is this beginner-friendly?

The guide breaks the job into 6 steps with timestamps into the video. If you can remove trim panels carefully, you can follow along.

Full transcript

Show the full transcript (137 lines) +

0:00So, look what we have here. The ATTO head unit. Oo. And I got some extra wires. I am going to [music] be installing the webcam. Not the webcam, but the the reverse camera and all these extra accessories I have,

0:15such as um trying out the steering wheel controls. So, let's get to it. We'll be doing this on the Scion TC. [music] It's Christmas, so let's install this for his little Christmas gift.

0:31Oh, looks like he's already breaking it down. So, uh, [panting] how's the breakdown, young one? I don't know. You're advancing this. So, you you never ever did this before? Of course not. This is

0:46So, how did how did you pop this out? Uh, just with my fingers. Just through the hole. So it was like through here and then you just use a prying tool of search and you just popped it out. You don't have to use a prying tool. Oh, you just use your hands. What a what a champ. What that does is it exposed

1:02these. So this plug right here was this your uh your hazard lights or something. Uh there was the clock actually. Okay. You got the clock right there. Yeah. So the main limiting factor right here is these bolts that are still holding on. I mean everything is pretty self-explanatory. So you just have to

1:19remove these, right? Yep. Cool. Just like most cars, this is probably going to be a 10 mil, which it is. Remove it like so. Finishing wrapping around the last bolt because there's one, two, three, four. My advice is maybe cover your shift knob or

1:35anything like that or, you know, this area. These brackets will do a number on your plastic trim. So, you got to be careful for that. You good? Not good. A few moments later,

1:52All right, do the honors. Be careful. This is the uh this is a part you do not want to mess up. Those brackets will scratch your interior. So, this is a Pioneer unit.

2:09And we got these antennas. So, why don't you unplug these two main ones right now? Most likely that's the uh usually this is like aux and steering wheels. This is your antenna. You can

2:26unplug that one. Does yours have satellite or no? No. That one right there looks like a USB. And he's having trouble removing the USB.

2:43So I'm going to I'm going to give him a hand. I need some backup. Don't pretend like I removed it and this guy pretends like he did it. So, this thing has a lot of uh good amount got a lot of weight to it. It's made out of metal. You got your little fan right here.

2:59It's pretty well engineered. So, let me just go over the ports again. This one was was plugged in right there. I don't know what that is, but this is USB. This is your main wiring harness for

3:00So let me just go over the ports again

3:03this one

3:08Was plugged in right there. I don't know what that is, but this is USB

3:12This is your main wiring harness for speakers and power and dimmer lights and all that

3:19I believe these are the steering wheel controls and the antenna, this one there was nothing

3:26inside of it.

3:28So let's look at the cables, let's see what we're dealing with, should be pretty easy.

3:32Let's see what we're dealing with. Should be pretty easy. This is where uh since we're doing a universal unit, your results may vary. If you're a Toyota, it's going to be really easy because I'm just going to show you the

3:47harness that I bought additional. You can use the harness that you that comes with it of everything. The only thing we really use was this 10 mil. Now, uh this is like the tedious part. It does take a while, but it's pretty easy. It's like just kind of just match it. All right.

4:02So, here's an example of how easy it is. Just kind of tedious. So on these this thing right here, it says L and L+ front left and front left negative. On the harness you buy from, you know, Best Buy or Amazon or, you know, forever for

4:17specifically for your car. Um, it's going to have information, too. So, um, usually you can you can see in the wire, too, but I just know that this is going to be the front. Uh, the white one's what? Front left. Yeah. So, the the white one. So this one

4:33right here, it's front left. The white. So the white one, just the white one without any stripe is the positive. All you have to do is something like this. And you can tape tie it and make it look nice later or solder it. But

4:50honestly, this is fine. It's not professional. Okay, this is not this is a not a professional install. And then you have your front left negative. And in this case, it's even color match.

5:05Look at that. Black, white with a black stripe. You can take out this bad boy. You twist it. And you do that for all the speakers. There's usually front left, front right, rear right, rear left. So there's those are your four speakers. And then um it'll look

5:22something like this. Boom. And now you can cut your cut all course. You get some electric tape to cover it up, make it look nice and um continue for the gray ones. Continue. And then you just keep working

5:38on it. It's pretty easy. I know it might look overwhelming, but if you break it down to just one speaker, one speaker, one speaker, it's pretty easy. That's it. The front right and front left speaker

5:54in. These are the plugs look like all tidy. And you know, you just keep moving forward. I just I just twist tied and then taped it. If you want to be nice, you can put, you know, heat shrink and also um solder them together. But do as

6:12I say, not what I do. So, if I were you, I would do that. But yeah, let's keep continuing. This guy never ever worked on anything like this. Oh, what have you done? It's whatever. All right. What's What's

6:29the blue one? Can you read the The blue one didn't say anything, but I'm guessing it's the It's probably the uh radio antenna, bro. Oh, it's your boy. And all we did was wire the 10 six

6:39probably the radio antenna brah. Oh it's your boy and all we did was wire the 10

6:44six pin so I have a lot of extra wires like the AUX key and all that stuff

6:50the backup stuff but I just only did two wires and we're gonna see if it turns

6:54on. Turn it on. Oh it turned on and we have some sound. We have some sound

7:00Oh, it turned on. And we have some sound. We have some sound coming through. Change to a station. You might 106.5. [music and singing] Oh, the antenna working pretty nice.

7:19[music] Oh, shoot. moving like a rockar. Okay, turn it off. I'm about to get some copyright. A few moments later. So, um what are we doing? So, things are working right now. Why'd you turn turn it back on?

7:30So things are working right now. Why'd you

7:32turn it back on. Okay, well I just didn't want to get that copyright hit.

7:40Turn it off. I mean, turn it off. Turn it the sound up.

7:49Alright, so we still have the screen protector.

7:52Okay, we don't have an OBD2 device. We don't have the OBD2 device, okay? Sorry I didn't get it for you.

7:58but okay there needs to be the Wi-Fi we don't have the GPS antenna hooked up or

8:04We don't have the GPS antenna hooked up or anything. The screen looks pretty good. It looks like a looks nice. Looks definitely a lot better than Spider-Man. Um, let's kind of just kind of retrofit it

8:19into the the main system or can you push the wires back and just kind of have it right there? Hopefully it doesn't short circuit anything. But yeah, there it is in its glory. We still have the screen protector. We're not going to take it

8:30But yeah, there it is in its glory.

8:33We still have the screen protector.

8:34We're not gonna take it out

8:35until we finished the install

8:37just in case we're moving things.

8:39So the first things I like to do when I test it

8:42is we should check out Wi-Fi,

8:43which I don't have it in plugged in,

8:45but we can do that real quick GPS.

8:48But Bluetooth should be able to work.

8:49So why don't you hook up your Bluetooth?

8:51Make sure we test the tunes a little bit

8:53before we mess with other stuff like steering wire or usb this is really like

8:57all this took us it didn't take us any time at all it's so we're hooking up

9:05Um, but this will work with your iPhone or Samsung. It doesn't matter. Under the Bluetooth devices, it it does say a Toto. So, that's the head unit's name. did you click on it?

9:20Yeah, it's hooked up. It's connected. All right, let's um go to home. And there should be a Bluetooth icon. N. This one has the Bluetooth calling. So, it's connected to Samsung. Why don't you play some music?

9:38Put some play some no copyright sound music. This is copyright. What you Hey, don't Hey, no swearing in this channel. Okay, this is this is a tutorial we're trying to make. What's not copyrighted?

9:55Spotify going on. Let's listen to some hope. Turn off your AC, by the way. Okay, turn up. Try to max out that Bluetooth over there.

10:11Close the door so we get that maximum effect. Roll up the windows. Let's we roll up the windows. Oh, you got to try close your hatch, too. We got to get that vacuum sealed.

10:28So, right now we're testing out the audio. It actually sounds pretty good. Is your left speaker working? [music]

10:30It actually sounds pretty good.

10:36Is your left speaker working?

10:43Here it is.

10:48Alright, so this is what I like to do to make sure all the speakers work, is we move the

10:53speaker.

10:56This should be right, the back one, left, and then yours.

11:02and then yours. So, all of our speakers are working and it's correctly wired because we're saying, "Hey, front left, it's working." Center. So, that's that's a win. This guy's smiling right now. He's very

11:17happy right now. Sounds pretty good. Okay, so we have everything working. Radio's working. Um, all the speakers are working. The next thing we really

11:33have to test is Wi-Fi performance and GPS. So, uh, let's turn it off and plug in these extra wires. Just be careful. Be careful, birdie. Okay. So, Wi-Fi is

11:49So, we have a Wii. No, it's just within the little antenna right there. So, It's easy. You don't really have to install it. GPS antenna. What we're probably going to do is we're going to put this antenna maybe on top of the unit or

12:05probably over there just for easy of installation. Some people route it over there and they they go up the A. Don't you don't need to do that. Just do yourself a favor and just slap this on top of that and call it a day. Unless you want really good GPS performance. Who knows? Um the Wi-Fi one is also

12:22something to be had. That's that would be more important to me. So, if you want to do all that wiring for that or you were doing both at the same time, might as well do both at the same time. So, let's get the the Wi-Fi and GPS. Do the honors.

12:41I have extra GPS. Well, this is exciting. It actually works. So, you make sure you plug it into the GPS. Okay. There's two on this unit. It's actually really well made. Some of them

12:58just plop it on here like this. You can plop it anywhere you want. Is it magnetized or no? No, that's a 3M. 3. Okay. Yeah, we can just plop it in here right now. Actually, don't do that right now. We'll just kind of throw it in the back.

13:00You can plop it anywhere you want.

13:02Is that magnetized or no?

13:04No, that's a 3-handed.

13:053- and.

13:06OK.

13:07We can just plop it in here right now.

13:10I actually don't do that right now.

13:12We'll just throw it in the back.'s

13:15Open this.

13:17Until we figure out the situation with,

13:21the trim pieces and the fitment,

13:23generally you can just plop it back there,

13:25but I mean, there's a nice spot right here,

13:28you can plop it back to this little metal bar.

13:36Now, you know what,

13:37fit and finish is really important, okay?

13:39As an artist, sometimes looks

13:41is more important than performance.

13:43You have to make certain compromises

13:45to get the most out of everything.

13:46There's a balance between, you know, performance and looks.

13:51Make sure this is tight.

13:53Same with this thing, you can plop it right here.

13:56As long as you just have it, it's good.

13:59Okay, so let's do the best case scenario pretty much.

14:05Our Wi-Fi router is actually pretty far.

14:12Set it up.

14:13All right, put it in, put it.

14:16Where's the GPS?

14:17That's what she's saying.

14:19Dude, we're trying to keep things PG, man.

14:22All right.

14:24All right, so now we have Wi-Fi enabled

14:27with this apparatus right here.

14:30Look at that insta-m boot on.

14:32You gotta love that insta-m boot on faster than OEM.

14:37Oh, and we get Wi-Fi signals right out the back.

14:40Dude, my phone doesn't even get Wi-Fi signal here.

14:42Yo, this is your boy, note eight?

14:45Wait for it.

14:46This is a note eight, and my signal is terribre.

14:52I guess, uh, now we'll just put it,

14:55we'll just put it right here.

15:06step up your game. Got to step up GPS, too. So, this guy really needs GPS. He is a uh what we call a uh wubaki a rookie driver. They're showing off location services on. We can um

15:24this guy is pokey by Hawaii in SoCal. Shows all the directions and ish. And there you have it. You you got Los Angeles 6our drive. Everything's smooth. It's actually really fast. This is like

15:34you got Los Angeles six-hour drive everything's smooth it's actually

15:38really fast it's like any kind of smartphone kind of modern-day smartphone

15:41that you can expect I mean what I see right here at resolutions great compare

15:47especially compared to something like the original unit that looks like it was

15:52on an n64 I mean don't get me wrong it it's not like the best like the note

15:598 it's the best old screen yeah it's just this is a good screen but I'm saying

16:09but I'm saying that this looks good. Oh, it can actually Oh, that's Yo, that that is real bright. Yeah, is that HDR10? Oh, shoot. My Well, I can turn on my brightness, too. You know,

16:24I'm pretty sure this one's brighter. I'm pretty sure I can turn on my brightness, too. Look at that. I'm pretty sure this is brighter. Yo, let me get a white screen. Ooh, you be the judge. This one's more blue. This. Okay. So, you're saying, "Oh, that one's more like on warm." Okay.

16:39Okay. That looks good. Okay. That's definitely not higher. Don't listen to this troll. It looks good, but it ain't like phone of the year. We're good. NBA HD. That's a small screen. This This is 6.3 in. This is seven. Are you serious?

16:54Oh, shoot. Yo, I told you not to swear. This dude's always swearing. But anyways, let's continue the test and uh continue. Oh, you guys want to watch some YouTube videos? Um, steering wheel control and backup camera is another thing we need

17:02continue to test and continue all this guy's gonna watch some YouTube videos

17:06steering wheel control and backup cameras there's nothing we need to tackle so

17:11let's let's start working on those it time permits

Machine-transcribed from the full-length video and lightly cleaned (product names fixed). Watch the video for exact wording.

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