installing donnelly rearview mirror w/ compass wiring question

[BKLYN2FLORIDA]

i obtained a mint rear view mirror (donnelly) from a 92 buick roadmaster that has independant map lights and built in digital compass. It comes with the plug, but the problem is no instructions. I got it from the junk yard for a few bucks.
Has anyone ever installed one of these on there GN.
im trying to get wiring schematics. it has 2 solid black wires, which i suspect to be ground, and another 2 black wires, 1 with a white stripe and another with a blue stripe. i figure one is constant and the other is ignition, but not 100%
Also there is a button on the side of a cylinder plastic, that i believe is to program the compass...anyone know this setup or has a car with this setup
thanks

BTW they are the same mirrors that came on a Impala SSm caprice and olds custom cruiser.

 

[BKLYN2FLORIDA]

ok..i was able to get the wiring situation straightened out...now having problems programing/setting the compass using the button
mn North is NE, doesnt show SOuth.....lol
GREAT.....anyone has knowledge programming the damn thing
thanks