Bluetooth stopped working on my factory stereo so I'm trying to replace. I can't seem to find a wiring diagram for the factory model (Pioneer - AXCP-Q14U T10015), and am at a loss on how I can track one down. Even resorted to emailing Pioneer support... any tips on how I could identify the plugs in my factory stereo would be greatly appreciated.

 

I'm not sure Toyota ever published 2nd generation tC diagrams. Crutchfield.com sells popular aftermarket brands with installation kits that include mounting brackets and custom cable assemblies. Plug-and-play, easy to mount/ install.

 

I'm looking for this too. I was able to get my front speakers working with a new Jensen unit, but can't seem to find the rear speaker wires....I'd really rather not get an amp just so I can have CarPlay lol

 

This is from the 2012 electrical wiring diagrams. I think the wiring and plugs are the same despite the stereo unit being pretty different. I also have a 2014 and everything I've used this book for still matched.
@SqueezeScion @sneakier_cactus