Question about Pioneer Premier DEH-P960MP CD Player

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Battery drain and HU dangerously hot

After install, battery would drain totally overnight. Amp and sub disconnected with no change. Removed fuse under hood for audio/instrumentation cluster and problem fixed. Returned to installer and I was fortunate that the HU was only on for around 20 minutes, as they discovered that the unit was so hot that it had started to melt wiring and they had to wear gloves to remove it. Old unit was re-installed and no more problems with battery drain. I took my chances buying unit on line and looks like I'm out a few bucks. Just curious, if anyone has experienced the same problems and is there a possible fix? The heat this HU was putting out could have caused alot of damage. Your response is appreciated. Thank you

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I have the same problem with My HU of over heating especially during the hot days of summer. I am gonna try to install a pc fan(square one's)underneath the HU to cool it doqn a bit. Im also gonna run a power wire to the radio power wire so the fan turns on when i turn on the radio on. I want to see if the HU is still overheating. My HU overheats even when just sitting in the car.

Posted on Jun 25, 2008

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That means that you have a parasitic drain, that can be caused by a short or by a defective device.

First try to understand if there is a parasitic drain.

Once you exclude the drain, replace the battery, a battery with shorted cells can cause the drain.

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