Ok I'm looking for some advise on utilizing my factory options on my aftermarket stereo. I installing a Pioneer AVH-P2400BT DVD Receiver in my 2011 Crew Max I want to hook up my factory back up to the head unit and still keep the camera view on my rear view mirror. Does anyone one know if this is possible I heard that if you hook up the factory back up camera to your head unit it will trigger a ground and not work? Also has anyone hooked up the factory bluetooth microphone to a aftermarket head unit? FYI, the reason this thread was created is because I used the provided search function and I did not get the answer I wanted. Thank you in advance.