I have had the juice with attitude on the truck now for about a month. i love it but today i noticed that it is stuck on level 0. i can scroll it up but the level never goes. it reads 0 in the top right corner. the monitor is working just fine though. I was fooling in the fuse box under the hood yesterday so i thought that maybe it came unplugged but its tight... any ideas on what might be wrong. Thanks in advance, Sean.