I know there is many threads and i've checked quite a few but I'm wondering if there is any updated ones that can do what I'm looking for. I'm looking for the camera to show up on the screen without having to press anything, I would be okay with a switch (installed between the heated seats) but I don't want to have to press AUX every time. Anyone know if this is possible yet?

Also, would it cost a lot to have the dealership install it?

 

What you're looking for is an automatic video switch that that switches your regular LCD display to a backup display on reverse, or an auxilarly display on a button press. Do a search for any of the following:
- PAC VCI-NIS2
- TVAndNav2Go

theres many existing threads on these already.