Hello, I realized the coaxial cable I got for the blackvue, 1.5m, was too short. My mistake. I thought it would be long enough but it just barely makes a B-line from front camera to back. Because of that, I can't hide the cable and so it's just hanging out there. Is there a way to get a longer coaxial cable that connects the front camera to the back camera? Do I have to go through the site and if so, does it have to a place just to buy coaxial cable? Or can I buy these from a store or will that void the warranty on the camera?