I have 06 S40 and I would like to know if I can install xenon and auto dimming mirror.

- is it very expensive to buy a whole oem head light housing and xenon bulb?
- just buy after market xenon and DIY? (is it hard to install?)

- for the auto dimming mirror, if I buy a parts from any after market or oem store, come with Y connector cable? (Y connector means it will connect to the power for the mirror and split in two way so I can connect to rain sensor as well) because there is only one power line coming out of roof so....

help me thanks
ted

 

Im guessing these already have projectors, so a set of aftermarket bulbs should suffice. I think they are H7 bulbs, so yeah.