I have TWO used OEM BMW E90 Premium Rear View Mirrors available for sale if anyone is interested in upgrading the mirror in their ZHP.
Mirrors are in excellent condition.
These are plug and play for any e46 2001 and later with the body harness 10 pin plug wired for plugs 1,3,8,9, & 10.
Not for Verts, apparently they are different (key fob sensors, alarm stuff and what not). Also, if you're car came with an SOS Assist mirror, you will have to remove pins 4,5,6,& 7 from your body harness plug.
Features Auto-dim, Compass, Garage Door Opener, and is compatible with existing rain sensor.
If your vehicle was NOT equipped with Auto-dimming from the factory (Premium Package) you will have to re-pin your plug to put power to pins 1 & 3. It's my understanding the Premium Package DID NOT go hand in hand with the Performance Package (ZHP) therefore many ZHP's may not have auto-dimming mirrors from the factory.
See delmarco's thread over on E46F:
https://forum.e46fanatics.com/showthread.php?t=694082
Located in NC. Asking $80 shipped per mirror.