Hey guys I got an issue with an head unit install in my girl's truck (2013 silverado 1500 crew cab LT). I have the AVH-X5500BHS wired to the Pac Rp4-gm31, Once I got it hooked up I turn on the truck. The headunit comes on but when I started the radio the screen flickers and the sound is cutting out. When I unplugged one set of the rca's it stops and runs normal but it's not loud at all when the head unit is turned up all the way. I reset the headunit and checked the connections all looks good. Any suggestions to help determine if its the headunit or Pac Rp4-gm31?
