Ranchhand1990
Newbie
Did some wiring work on my bosses 91 gmc. Before doing so the radio worked fine. Now everything is working except the radio. I am not getting any sound, static, or lights on the interface. I used a meter to check voltage at the pigtail right where it plugs into the unit and it has a full 12 volts. I can’t seem to get 12 volts on the interface side on any of the wires. I have tested two different radios and neither one is giving me 12 volts on the outlet from the radio to the interface. Any ideas what to check?