Just finished installation and it took me about 2 hours. Not hard at all, but it does require patience. Be VERY CAREFUL when mounting/unmounting the mirror as I left a crack in my windshield
, even though I was taking it really slow...
For people who have the most basic mirror (black clown nose), there is no alarm pre-wiring after March '09 production, so A6/A7 are not there as I believe those are for the blinking clown nose. The retrofit kit I have did not come with A6/A7, meaning that it was meant for pre-03/09 so that A6/A7 are 'reused'. My car does not have factory alarm so I figured there is no point for me to retrofit A6/A7.
The solid brown wire was not used, but I kept it just in case I need it. The extra wire was very helpful to get other wires go through the grommet, as I taped all wires to the brown one and used it to 'fish out' other wires since it's longer.
Tim