Bought the EC Off-road for my 2021 HE and trying to decide if I want to install it myself. The videos they sent along talk about a HDMI cable to connect the rear camera to the head unit, but don’t show the install because the vehicle they’re working on is a VX and not a Sahara. I assume the VX doesn’t have a rear camera and this, given I’m in the US and have a HE, I will need to install this piece. Anyone install one of these and have any thoughts?