Alan - seeing you are asking for dash/stereo parts (which I don't have), I wanted to ask about a factory amp. My Challenger is a 3 speaker dash and came with a am/fm and behind the glove box there was a little square electronic box which I believe is an amp. No idea if it works and I have held onto it because it came with the car. Just wondering what this box is, I will get a picture on it later but it is definitely tied to the stereo.