E90 Mirror w/ Homelink, Compass & Autodim integrated $70 shipped 786.316.2598
Great upgrade for e46 chassis (plug and plug with some wiring needed) or replacement for e90, this mirror has a compass integrated on the top right of the mirror, also auto-dimming feature, and homelink for garage door opening. For my car specifically, I have an 04 330i Zhp, so depending on what car you have, but mines I just had to run two wires one positive(acc) and one negative(ground) the pin outs can be found in the forums.