Well I am stumped with this.

I got a gentex out of a maxima with the auto dim, homelink, and compass. 3 wires thus should have been simple, as I had autodim wiring to start with.

Installed it and now the homelink works fine, but the autodim and compass work only in reverse. No D,N,P,3,2,1. Only reverse. The previous autodim came on properly and I am using the same wires.