Howdy, I have a 2012 Nissan Quest SV. I would like to install a rearview mirror with Homelink, dimmer, compass, etc. Ebay has many used units for sale. Do I need a rearview mirror wire harness or do the Quests come prewire already. I know of other brands of cars that come prewired for many things. Thanks for any info. :0)

Does anyone have the review mirror wiring diagram for Quest.