Question about Pioneer DEH-P4600 CD Player

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DEH-P4600MP loses XM channels when car is turned off

I've had this problem for a few months now. I have XM radio and thoroughly enjoy using it. However, now whenever I turn the car off, and start it back up, the XM loses all the preset channels, and I can only receive channel 1. Whenever I select a new channel, i get a message that says 'updating' and it never finishes. Just to test it out, I updated XM and after I received all the channels, turned the car off. All the updated channels were gone, and I was back where I had started. I need to know what to do. Is it a problem with the head unit, or with XM, or with something else?

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Re: DEH-P4600MP loses XM channels when car is turned off

When the rario turns off, it seems the XM receiver is losing memory power,check the wiring to be sure its present.

Posted on Aug 06, 2007

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