Funny you mention that because I have the same problem with my aftermarket head unit. I bought the harness and the only way with that harness to get it to work was running the 12v to yellow constant. I have to manually turn it off. Never had that problem with any other car or stereo that I've installed. Tried multiple different sources. I even tried running a wire over to the ignition and got the same result. Obviously I've done something wrong somewhere. Just need to start from scratch. Going offshore fishing all day tomorrow but Sunday, I'll take it all apart and start over.
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