99 D2 rearview mirror replacement two wire version

11b4v

Well-known member
May 5, 2009
225
8
N. Alabama
My Son's 99 D2 has an auto dimming rearview I want to replace with a D2 auto dim/compass. I have searched, and found numerous posts on D1/D2 wiring matching BUT my 99 only has two wires, black and gray. D2 has three wires. Anybody know what each one is for? thanks, mv
 
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