Originally Posted by Romer
My guess is the ground. The outlet you have the fridge, might try taking the ground directly to a chassis bolt rather than running it back. Same for the Radio.
If they are on the same positive (fuse), might try finding separate sources
They used to be on the same positive, then I ran a separate power/ground to the fridge to try to fix that interference - no improvement with that...hmmm...ground is the next I'll check.