I had a quick question about the best way to wire up my new system. It's not just for the TZTtouch2. In the installation instructions it recommended putting the radar on a switch by itself. I was wondering if I could just wire it to my fuse panel where it would get its on fuse along with the DDF3 on its own fuse. Only concern I have is when I cut the battery switch on if the radar and DDF3 will power up. I was worried about this because when we are at the sandbar and I have the radio on I don't want the radar and bottom machine to pull on the radar. Will the DDF3 and the radar pull much power if the TZTouch2 screens are not on?