Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
there are NO blown fuses and the yellow wire at the radio shows no volts at all with the truck off or on and running ?
that yellow wire goes right to the fuse called radio a 10 amp fuse in the inside fuse box
change that fuse and if that yellow does NOT show 12 volts still and that fuse is good and shows 12 volts at that fuse than that yellow wire is bad between the radio connector and that fuse and its usually best to just run a new wire from that fuse right to the radio
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how are you making out ?