I have a Gentex mirror with dimming and Homelink garage door opener. I took it off my trade-in (put back original). My SE hatchback did not have wiring that I could find in the roof, so I ran 2 wires under the head liner and down behind the weather stripping passenger side door to the fuse box under the glove and used add-a-fuse on I think fuse # 86. If you search for radar detector wiring their is a post that tells how even with pictures. On amazon for less than $100 to $300.