I had wondered about the compass but sandrock and c0rsa180 have seemed have done it???

I just wanted a SSE/SSEi autodim the install pics with all the connections will come tomarrow

Yep I did...wasnt too hard to do, but had to take the time to find out which wires did what. I only ran 1 hot wire from the fusebox to the mirror and grounded one of the others. So I am only running the compass function. Which is fine by me

so the compass module is built into the mirror then i assume

Sure is...the sensor is built into the windshield mounting. I forgot what car that came out of, but I am pretty sure it was a Buick Roadmaster.

What does the auto dim mirror do and how does it work?

when light hits the mirror from behind the mirror darkens to reduce glare

Hmmm...doesn't your SSE have one of those? I know I saw one in the junkyard of your bodystyle with that type of mirror, but maybe a later year than yours?

yup everything works perfectly...it was done so long ago i just gotta remember how everything was done...ill talk to my uncle who worked at pontiac and find out all the specifics, but im pretty sure u just run the power then calibrate it just as if it was any other compass...just gotta check the cadillac owners manual first.

And im not 100% on where they ran the power from...ill talk to my father and get back to u on it