@4RunAmok
I've attached pictures of my source screen and 20-Pin connector. Would you mind replying with your source options displayed? The cable I ordered from Thailand would have required too much work to make it work so I'm going to get the same type of cord you have.

As for the AUX, I found out the Scion AUX pins on the stereo are in the 28-pin connector. So for my 4Runner's factory 20-pin connector, only three wires are on it for the steering wheel controls (radio and phone).

Bonus: what wires are coming out of the back of your 20-Pin connector?

Attached Images

   

@K_Labs - I remember reading this a few pages back. I don't have a camera so I can't help you any further.

Oh this would require me taking apart my dash to look! LOL! Which probably won't happen until/if I add the backup camera wiring.

You were saying your console does not have the aux plug, so it very well may not be in your wiring. I don't recall any of the larger plugs having that few wires going into them, so there could be a big difference between our harnesses.

Here is the screen I show...

Beatsonic does make a back up camera harness but its ~$70 dollars. I found another harness that would work for half the price and I think I am going to go that route once I find time to do the install. Here's the ebay link and heres the AutoHarnessHouse website link. If you do the install keep us updated on how it goes.

This is what I show and I have the aux port in my center console.

I would love to have a back up camera. Someone please do this install and let us know how it goes.

Okay, maybe I lost track of what was incompatible with the JBL units along the 15 pages of thread or maybe it's just too late too keep track of it all...

But what exactly prevents the Scion T10015 (PN: PT546-00140) head unit from integrating with the JBL system?

Buckles you didn't by any chance happen to snap pictures of the Tacoma head unit mocked-up or next to the old head unit did you? I was wondering how much bigger the Tacoma unit was...

As far as I know, the issue is because the JBL equipped 4runners use a single 20 pin (male) harness from the vehicle side (as pictured below) to provide power, ground and speaker signals to the JBL amp and the Scion PT546-00140 requires the 10P+6P. I am assuming that non-JBL 4runners are equipped with this 10P+6P harness from the vehicle side. It is my understanding that the non-JBL headunit (similar to the PT546-00140) that comes stock in some 4runners have an internal amp that feeds the speaker signals directly from the head unit to the corresponding speaker.

Attached Images

   

I'll have to dig through my photobucket and see if I have a pic. It was about .25" big all around. It would have fit with some trimming of the dash opening.

the speaker outputs of the scion will not correctly cross over to the JBL amp from my understanding. There is a digitial signal that is send from the JBL HU to the amp and from my research there is no way (that anyone has posted at least) to get this to work.

one way i was thinking of going about it was to run the scion, hooked up to one of those TATO deals and then to the JBL amp. one would have to convert the speaker outputs of the scion to the RCAs of the TATO unit though.

im sure some smart electrical guy could figure it out for us, but no one had done this yet!

if it is possible to run the scion unit while maintaining the OEM JBL amp, I am all about it, as this is what i wanted to do in the first place before i picked up my e7009.

This is where the line output converter could work in theory..

Scion headunit speaker siginals> LOC > Pac TATO > JBL Amp

1) what exactly is in a LOC? does it just convert wires, or are there other electronics going on inside it? what would stop someone from stripping the rcas of the TATO and just soldering those directly to the speaker outputs of the scion

2) on the same token, what exactly is inside the TATO that makes it so special? is it just some resistors and other cheap electronics? could one be made for cheap?

we need an electrical engineer around here to shoot us some diagrams to make our own converter that goes directly from the speaker outputs of the scion unit to the JBL amp!! this person would make a pretty penny on the side from all of us toyota owners that would like to go this route!

Okay guys after reading through everything and coming to the conclusion that yes the scion unit will work...sort of. You will get power, sound and steering wheel controls, BUT no JBL AMP connection right???

I looked through some old threads and do these help?

JBL to Scion Head Unit Problem

OR

Purchased T1809 Scion Radio - Installation Issues

or couldn't you use this harness Axxess TYTO-01 (tyto01) Wiring Harness for Select 2003-2008 and splice wires?

I finally got time to install the back up camera and all in all it went smoothly. The install was pretty straight forward, it just took some time to route the wires from the tailgate into the rear of the truck and then up to the front of truck and behind the radio. I mounted the camera in the factory location a little to the left of the left license plate light.

I used this camera on ebay for $36 and used this harness from btbsa for $35. Beat sonic also makes a harness but it's around $100 and the one I used works just as well.

I used this thread as reference while doing the install. Not exactly the same but was useful for sure.

I am very happy with the install so far (it's been about a week) but still waiting for some rain to see if the camera holds up. The camera is waterproof according to the seller but I'll find out soon enough.


I can post pics of camera and headunit while in reverse if anyone is interested.

@4RunAmok do you have a link to the USB cable you bought? I found an aftermarket one from China on amazon but the quality sucks. When I used it with my iPod and iPhone the sound quality would crackle and pop and then lose connection after a few minutes.

I have been using the OEM Toyota/Scion USB adapter modified and it works okay but it will randomly drop the connection a few times a week and doesn't work with iPhone 5s lightening cable. Do you think I could cut the OEM Toyota USB adapter cord in half and splice on a standard USB A female cable on the other end?

@acronin2

Try this link: APS US Shipping Axxess Cable for Select Toyota Lexus USB Retention Adapter | eBay

I haven't gotten around to finishing the install because I'm getting the dash done first, but I bought the same harness and it was very tight connecting to the head unit. How was yours? I'm probably going to have to trim the connector.