bookayandy

Also this is an avh-x7500bt model if that matters.

Well, this answer didn't really fix my problem.  I was able to ground the parking brake wire and i could tell it had an effect on the unit because I was able to play a DVD in it.  However, I still could not access the bluetooth settings as they remained greyed out.

What I'm trying to do is erase whatever's stored in there so I can pair it with our phones.  We installed it brand new and when we were playing with it, we paired it with 3 other devices (not the ones we want).  Now I can't clear them out to pair the valid ones.

I'm looking for some way to completely erase/factory default the unit.  The reset button clears the programmed stations and the date/time but not the bluetooth.  

Any suggestions?  Thanks!

Thanks for the info.  I've been looking for this answer for about 2 months!