I'm looking to install a lockpick on a 2014. They don't give much information on if it works with stock front cameras. What I'm looking to do is add left and right side view cameras that activate with my turn signals and maintain my stock front and rear cameras. Turning on the front camera at any time would be nice but not required. According to the lockpick instructions, a front camera would need to be plugged into video 1 as well as the left turn signal camera. Since the camera is factory, would that still be the case? How many cameras total can I plug into the lockpick?