Possessed Panasonic CD player

[ssenter]

I recently acquired a '92 SVX w/factory Panasonic am/fm cassette and separate CD player. The CD player has a mind of its own, turning on and off randomly, looking for a disc. Of course when it does it, the radio cuts out too. The worst problem, is that it will do it regardless of whether the radio is on---meaning it will do it when the radio is off and/or car is turned off, potentially draining the battery. It does seem to be temperature sensitive, i.e. the warmer the components, the greater the frequency of problem.
Anyone ever had this problem? How hard is it to get to the wiring harness to unplug the CD player?
Thanks a bunch!
Scott
Klamath Falls, OR