[MrE]

@1989newell, I replaced my backup camera on my 1986 and it works awesome. I had to run the supplied cable from the camera to the back of the bus and it was plenty long. I took the old camera out of the housing and engineered the new one to fit the housing. I took the old screen out and replaced it with the new monitor, very little modifications needed. The camera has a microphone and the monitor has speakers. Also has infra-red night vision. $200 at Costco, link below.

Backup camera at Costco