Hey Christian, actually the DIY is located on the 1st page of this thread in the 1st post.OMG nobody has made a DIY video yet or pictures step by step? Really want to purchase it but need some kind of idea how to put it all together.
However, you can find it here as well: Kia Optima - Automatic Reverse Mirror Tilt Module DIY - K5 Optima Store
You can get (2) modules to have both L & R side mirrors fold down when the vehicle goes in reverse. However, yes, you would need to run the wire from both sides to one location.Also if you buy 2 of these modules does the passenger side need wires to go all the way to the driver side? or are the wires already there by the door?
meaning i guess to access the reverse wire. do i need to get extra wire and run it throught the glove box all the way to the steering wheel?