Yes I read the FAQ and searched for this information. I have a head unit I bought off of ebay for 5 bucks, had a little wear, however my original head unit that came with this car was a crappy head unit. I think the guy had a good one in there that he took out before selling the car. Anyway, the head unit I purchased was a plain jane stock cd/cass player. I have a 2000 Z car and the radio came out of a 2000 cavalier. Here is where my questions come into the picture. I hooked it up and of course it was locked. Going to take it to the dealer and get it unlocked. Thats the easy part. This might be simple too, but on the rear of the headunit there are two different plugins, I only have one plug in my car unless the other is tucked way back in the dash and I will have to search for it. But figured I would look around on here and find out. There is a wide plug and a narrower plug and the antenna plug. I would take a picture but I don't have a camera until after christmas. Thanks for any help. And if I missed the information that tells me about all this I am sorry, I thought I searched for a while.
narrow plug is if i recall for a changer/ sat radio option
watch for flying sparks!!!