I'm at work so I can't check my stash of 4 stock 8 track players but I think some were 2 speaker and some were 4 speaker. I know I had to clip the stock ends off of the wiring harnesses and add 2 - 3 1/2" speakers where the 4x10 was and 2 in the back for the one I installed in my Aspen but my radio was only AM. Also I know Dodge made some mono AM FM radios. It might not be a direct wiring harness plug in switch so check the wiring harness ends. You can find 8 tracks on the bay, old junk yards and second hand stores. They look just like the radio with an 8 track door in them.