Can anyone tell me which and where the fuse is for the tape deck changer in the back of my 2004 Cayenne S. When I turn off my key the tape deck changer keeps running for about 30 sec. and I have no tapes in it. I took the cartridge out. Sometimes when I open the door the deck starts turning or it sounds like it is running but nothing is turning that I can see or feel and the unit is hot like it has been running the whole time I have been driving. Has anyone else had this problem??

I would like to just take the fuse out and I will put it back in if I go on a trip and want to use it.

Any input would help