1st Gen Tundra (2006 Specifically) Fixing PO(S) OEM Radio Harness Hackjob

Each thread has given me pieces to put together, but it’s still not added up so I figured I’d start my own thread per @shifty`

Here goes…

-I have a 2006 tundra access cab that is supposed to have the DC AM/FM/Cass/CD W/6 Speakers per the Toyota Owners Portal.

· What your original setup was - JBL or non-JBL

§ What I got with the truck is the Fujitsu ten 86120-0c060 radio (no JBL etching) and jbl amp 86280-af022 as pictured above, I don’t have steering wheel controls or anything like that. But everything turned on just no music/audio.

· Is your OEM amp still intact under the black plastic cover that lives inside the passenger under-rear-seat cubby?

§ The amp is under rear right seat with no black plastic and when I look up pictures mine looks way smaller than what’s usually there.

· Where did you get the donor harnesses from? Like, what EXACT cab type, what was its system, what was its year? (And you do know, Metra and a few others make replacement OEM harnesses, right?)

§ I have no donor harness just what the truck had in it and cut off of it(I did not know they made a whole new OEM harness, that might be what I look into because that saves this whole thing to be honest waiting on some things to start holding today but might hold off) Crutchfield only has the amp bypass and steering wheel stuff. Also speakers are untouched.

· What is the current state of your truck, and what plans do you have for audio moving forward, so we know if there's extra steps we need to add, or steps we can cut out?

§ For status, everything is cut behind the head unit and at the amp I have 4 connectors I’ve been mapping wiring for the last couple days. Truck side has all the correct wires connections side does not (the new complete harness would save my life) I’ve been using the diagrams I got from this website and slowly making progress.
I don't necessarily plan on doing anything too crazy but I'm not against it if i got to get new stuff either way, I'd like the option for amp sub whatever (if not too complicated)

@shifty` said "I was thinking the (or one of the) previous owner(s) was too stupid/lazy/cheap to buy a $8 adapter harness and went ham to cut all the original plugs out. I suspect Darby here has purchased used replacement hardware from incorrect make/model/year with the correct harnesses for the used equipment, which aren't the correct harnesses for their truck. Like, JBL amp from an '01-'04 Sequoia w/JBL package, and a head unit for a Tundra or similar, but one that works with either the Fujitsu amp or no amp, depending. I know the radio is, at least, from a 2003 or 2004+ truck, because it has 3 harness openings in the rear, the one in the middle of which is for steering wheel controls, something that didn't exist in earlier years."
-Which I agree with from what I've seen.

So here's the question do i find a new amp or head unit? Do i get a whole new OEM harness to route to avoid soldering and repining connectors galore? From what I've read these cannot work together ever, do I do ahead and upgrade both??? I'm already in there why not just get new head unit and amp to be fancier?

If you've seen me posting all over i apologize for the spam just looking through multiple avenues for answers when everything seemed crossed.

TIA

 

Those door panels are not JBL
That radio is not JBL
That amp appears to be JBL
If you dont have steering wheel controls, i dont think you have JBL
I might be wrong but i dont think the JBL amp is the one to put in there. The JBL amp is wired up weird, its not a standard output from the amp, to each speaker. Its got everything from the radio to the amp in a series i believe. Its really weird and its why you cant just plug behind the radio and pick up each speaker level out, the JBL radio wires TO the JBL amp only send like 2 or 3 positive speaker outputs, yet the vehicle has many many speakers. The amp is what splits it up into individual speaker level outs.
If you are mixing up a non JBL radio and a JBL amp, you may not be able to get them to jive.
Have you tried a standard Toyota harness and wiring it up to your radio and see if you can get a hand held speaker to work off the speaker level outputs on the back of the radio at the harness? May be easy to just bypass the amp completely if that radio has speaker level outputs.

 

I had to deal with the same thing in my truck and spent a lot of time on the phone with Crutchfield support. I ended up cutting the connector off the amp bypass connector and splicing the wires according to the wiring diagram that came with the harness. Ideally if you can find an oem harness I would splice it back in and use the connectors and adaptors to plug in.
It all depends on your goals, but you will probably have to pull an oem harness from a donor if you don't want to splice in connections. I would go ahead and upgrade the head unit at least since the amp isn't compatible and you can run the bypass harness. That should get everything working.
Best of luck.

 

@badass03taco @Kimosabe
I’m going to the junkyard this week to look into donor harnesses and I’m going to order the stock amp and see what I can do. If I don’t find the harness then I can order connectors and pin everything with what I already have (NEW amp included) or attempt to as I’ve never done anything with wiring. If that isn’t possible I’ll work into the bypass harness and all of that (on order just in case).
Might have to drive with the fuses pulled for a while

I am curious as to the connectors i may need for the original amp as it looks different. I'm using R12 & R13 that came with radio side wiring but the 1G (double cab) and IB4 (Guess) that were in the old JBL amp don't look like they are going to work and I'm trying to be prepared as to not waste any more time.
Using the below quoted reply i figured out part of it but does it go the same both ways and how do i find this information similar?? the EWDs have all listed but non specified (R12,R13,S21,S21???)

EDIT
Found some Part numbers if you guys need them for radio connectors and other just don't know which ill specifically need.
The Crutchfield guy said it has a 20 pin connector and a 13 pin connector (could be the 1g- access cab+standard cab)