Backup camera question

GLKnewbie

I just purchased a 2011 GLK-350 with low miles and when I programmed the backup camera to activate when I put the car in reverse, nothing happens unless I turn on the radio or open something else on the console screen. Is this my only option? With previous vehicles all I had to do was shift into reverse and the camera worked. What am I doing wrong?
Thanks for any direction you can provide that is not in the manual.

PF_Flyer

Is this an aftermarket backup camera? The fact that you need to turn other things on, makes me think it's a power supply issue

thecardoc3

From what I can see that appears to be correct, the COMMAND does have to be turned on to receive the camera input. I take it that you have both the regular owners manual and the COMMAND manual?