Originally Posted by srcstc
So if I have an auto dimming/rain sensing mirror I don't need to buy a new mirror?
Unfortunately you have to buy a new mirror always.
You must have rain/light sensor and auto dim wiring for installing this, but the FLA sensor is inside the mirror and you have to change the whole mirror.
Don't worry it is not so much expensive... You can find it on eBay around 150€
Install the auto dim wiring is so easy:
Check this if you don't have it