Question about Car Audio & Video
Sounds like you have a constant feed going to the head unit, but the accessory wire on the head unit is not connected to an accessory 12v.
Are you using an aftermarket wiring harness or fishing through in-dash wires?
If you really want to check if there is a fuse blown, unhook your head unit and briefly touch the 12v accessory, 12v constant, and ground to the battery of your vehicle. If your head unit comes on, you have found your culprit of one of three wires.
Posted on Jul 28, 2010
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Posted on Jan 02, 2017
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