[barryr]

What I was able to figure out from all of the tips in this forum, is that the radio circuit is powered by a variety of different circuits. I went after the multifunction switch as both the fuel and trunck buttons would not work as well as the radio. I jumped pins 12 & 14 of the switch and everything worked. The only problem is the radio had to be turned on every time I started the car. I changed the switch and everthing works fine now.