Seems like you are doing a good job of working through it!

(no help here, sorry)

Not really. Have given up on it until someone can help me out.

Not really how you got one to work and the other doesn't unless your dashboard is treating the image differently depending on where you put it. I'm never really sure how to help you either since I always get half of the information, flat files and have no way to test it.

I gave you all the info ya need. Go buy an AVIC unit yourself and then maybe you can figure it out.

I'd be just fine with the factory defaults if I did