First you should take the deck out and the yellow wire is your memory it shoul have full time power and not hooked to your dash lights this will cure your memory problem and possibly the cd problem. If you know how to use a multi meter test all wires on DC setting on meter and your looking for 12 volts all the time key switch on or off for the yellow memory wire then for the red wire you need 12 volts only when the key switch is turned on. Then the black wire is the ground no voltage at all. Hope this helps. leve feedback if so.