I removed the non-functioning dome light from my Raider...first modification that I did to it so many years ago. I ordered an aftermarket Grote brand interior light fixture that uses an 1156 light bulb (same as the turn signal bulb). Unfortunately, the unit I installed doesn't work with the door switch, but you can read by it outside the back door at night. There is no easy way to mount a stock piece above the rear door on a 2-door model. The 4-door came with a different upper door frame, and the lamp there did not operate with the front lamp anyway.

My lamp is like this:
Grote #61491-5

My advice, get an aftermarket lamp assembly, install it and go on your merry way.

Russell