I have the 502A also and just went out and looked and don't see a front camera. Not something I need to spend 1000s on just wondering if it would be an easy addition. Doesnt sound like it would be.I have a Lariat with the 502a package. I think the truck already has the camera's...maybe? And the camera button is on the dash.
Maybe a different module needs to replace the existing one or is this wishful thinking?