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I'd suspect the radio wiring. Most aftermarket (and most OEM) radios have a batt+ lead (to retain station memory settings) and an ignition+ lead (to power the radio when the key is on or in ACC). If your radio dies when the dome fuse is pulled, I'll bet the ignition+ lead is wired into the dome circuit instead of a key-switched circuit.

It shouldn't pull current if you turn the radio off, but might... Good luck.


I think Whizkidder is on the something..

When you say the radio dies, do you mean it doesn't play at all, or does the radio lose its station presets (memory) when the dome fuse is removed?