If both graphs are doing it then more than likely it's the box. Check to make sure the box has power, it's hard to see but there's a little green light that should be on, on the box when it has power. If not trace out the wires and check where it draws power form. Also there's 3 wires that feed the box power, red, black and yellow. The yellow wire is the "awake wire" and is tied into the yellow wires coming off the power wire for HDS unit it's self. It pretty much tells the box to power on when the HDS unit is turned on. You can tie the yellow and red wires that power the box together and the box will stay powered up without having to be "woke up" by the HDS unit, just make sure you can turn the power off to the box (like a breaker or something)when not in use to keep from draining your battery.