Since I have the 2 channel camera system now, I would like to monitor the rear camera via a 3.5" screen all the time (yes, I know...Home/swipe right/camera). As for a power source, I was thinking (since I hard wired my camera system) to use the Gen5DIY harness since I purchased the extra leads version. Would this be a "direct" plug in for power or should I add some form of inline fuse? Figured 3.5" would be small enough not to hinder viewing of front windshield but also allow driver/passenger to keep an eye on what's going on in the rear. Just had another thought, its a 2 channel system and only 1 AUX. So I wonder if which camera to view would be a VIOFO A129 setting or if not, if both or displayed...would be too small of a screen.