On my 2009 Tech in the engineering sub-menus (takes a special keystroke & button/DIS knob sequence to get in there - those menus are not meant for owners to access) there are what Hyundai calls "Variant" settings. These settings mostly depend on which country the car was sold in... things like air bag suspension or not, front camera or not, etc. On non-Tech cars only the dealer's plug-in system can access/alter the variant settings.
If I remember correctly, when the transmission is in a forward gear and the vehicle speed is below 5mph or so the screen switches to the front camera view.
I'd start by:
1: for your model year, assuming you have a Tech package, figure out the secret sequence to get into the engineering/variant menu. Do a SEARCH on this site for your model year.
2: Look around the grill area for an electrical connector not plugged into anything... just capped off or taped out of the way. I wouldn't be surprised to find the wiring is in the car... just like V6 models have the wiring in the door sills for the lighted "GENESIS" sill plates that came on the V8 models.
3: go to
www.hmaservice.com (or
www.hyundaitechinfo.com) and sign up... then browse factory service manuals to see what's involved. It might show you where the front camera wiring connector might be hiding...
mike c.