Quote:
This is all very complicated it looks like to get it working again propaerly.

Not if, as we are suggesting, it's simply a blown fuse. Blown fuses are not complicated to fix. Please check the fuses on your car's fuse panel, and also the inline fuse on the yellow wire going to the empeg.

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I dont have the problem if I hook it up out of my car.

This is a good sign, it means the problem is most likely outside of the player, thus, easy to fix.

Another possibility is, have you installed any third-party software on the player that runs only in DC/Car mode?
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Tony Fabris