2017 Entune in a 2008 Tacoma

Calling car audio gurus... this is my first (definitely not last) post to TW.com

I just picked up a 2008 Tacoma 4x4 TRD Offroad that will be transformed into an expedition rig over the next 6 months. On my list of things to do was to replace the head unit into something that didn't suck as bad as the OEM radio. Nav was not necessary since I will be using an iPad with LeadNAV or Motion X.

I wanted a radio that had video capability so I could have a rear camera and front camera for crestiing hills while offorad. Well, I had a 2017 entune unit from my cousin's truck fall into my lap last week so I figured what the heck, Ill throw that in there. Hours of cutting, sanding and fitting later:

Old radio before I hacked it apart:



New radio shoehorned into place. It required cutting into the dash because the faceplate was deep.

My cousin realized that the dealer never gave him the map SD card, so he will be picking that up for my today.

Current problems:
1. I need a wiring diagram for the entune system. I have scoured the web and cannot find anything related to which slots on the back of the radio correspond to different inputs/outputs. The dealership is useless.

2. I need a microphone that compatible with the entune system. I cannot pair a bluetooth device until I have one plugged in. I don't want to drop $150 on a factory assembly when an aftermarket one can do the job. Any suggestions?

3. Backup camera and how to wire it, hence why I need the diagram. Any aftermarket compatible devices?

4. GPS - does anyone know if the GPS antenna is built in, or do I need to order one for this to work?

5. The two plugs that control lighting and stereo outputs were direct matches from the 2008 OEM radio to the 2017 entune. Literally unplugged the old radio, plugged in the new, and all of the speakers were working and dimming features worked. There is an extra plug on the back that had no home on the new unit, and I am not sure what the wires originally fed, or if they need to be rewired into the new system somewhere. They are:

Purple with white stripe
White with red stripe
Yellow with black stripe

Any ideas?



Thank for your help.

Edited for photo resizing

 

Any progress on this?