My cd player went out in my 2002 cavalier so i got me aftermarket one and wire harness so i connected all the wires together but cd player wont turn on. To me cavalier harness doesnt have 12 volt ingnition wire in the harness or it has it but its togehter with 12 volt battery wire so if i put 12 volt baterry and ignition wire together the cd player works but the prob is when u turn off ignition and take the key out the cd player would still work. So anyone has any ideas how do i go with this prob