Hi, my friend recently installed an aftermarket headunit from her Lexus IS and forgot to remove the cd's from her factory headunit. In the back of the headunit (where the harness plugs in) there are pins and if u look closely in the back, they are numbered, can someone please tell me what numbers are positive and ground so i can turn it on and remove the cds. thanks
also, if u need a pic to see what im talking about with the numbers, let me know