Looking to see if you can add Bluetooth ( W / steering wheel controls) and auto dimm rearview mirror as retrofit. I have read many threads that differ. I know that any additions will most likely require dealer support to flash the system.

 

For the bluetooth if you car came without it and without the usb thingy ur better of ( cheaper/faster/easier) with an aftermarket solution. Ive added my bluetooth from Mike the mini, http://www.newministuff.com/new/index.php , myself was about 3-4 hours of work and I have never modified a car before as for the rearview mirror there is a cable that come up to the base of the mirror for power etc. I dnt know if you can pass a cable there or where it goes

 

Thanks