?how to unplug CD changer.. trunk mounted one wire

I have a JVC cassette/reciever KS-Fx230/F130 with CHX99 CD changer in my '95 Chrysler Lebaron convertible. The changer is mounted in the trunk. I need to remove CD changer part of the system to deep clean..(dust dirt etc car stored 2yrs).

If anyone has an installation instruction manual for this system...I would like to get a copy!!

I have the cd changer loose from the auto but not the wire...Never seeing the "in" part of the plug I don't know how prong(s) might shaped... I don't want to damage the plug/system... plug is odd shaped and wire comes off the side.....Does it lock in any way? ...plug base looks like it might go in & maybe turn to lock? ....or does it plug straight in?

there should be a push in tab on the end of the cable. push it in with your thumb and wiggle it a little, don't force it though.