From the couple of different threads I've read about it, it seems that most models will have the wiring tucked up in the headlining.
So basically, there is only one sensor and it controls both the wipers and the lights? I've had a quick look on eBay, and there are a couple of set ups for sale which include the auto mirror/sensor/sensor mount etc..
Then its just a case of plug and play? change the light switch, plug the new one in, plug the sensor/mirror in and activate it through elmconfig? You dont have to add wires to the auto lights switch or anything?
Yes matt one sensor control both, its all plug and play but your mirror will need to be adapted to fit the mount already on the windscreen, if you can get hold of a mirror and the mount that comes with it you can do what I did and remove the standard mount then refit the new mount using windscreen mirror glue from euro car parts or halfords
Auto dimming mirror is or was a factory option on its own this mirror uses the same mount as the basic mirror, auto wipers was also available separately, get a mirror that has auto dimming with lights and wiper sensor, the mirror with auto dim + wipers and lights uses a different mount, a round type mount.
I found this easier than modifying the mirror, doing that cost me a mirror doing it wrong.
Adding of wires should not be needed everything should be there at the light switch and roof lining, only one person on here needed to add an extra wiring but his car is not a right handed uk model.
Once all done it will need activation on elmconfig, auto lights and auto wipers are activated separately.
Ben help me out with that part till I got my own elmconfig cable made by pree
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