Ok so heres the deal, I was moving my cab inside before it gets to cold to play it outside, and when I got it in and all plugged back in there was no sound. I took the carts out and put them back in a few times to see if that would help and nothing. I traced the wires from tp to bottom and everything seemed like it was ok, so I went into test mode and under the sound menu it said the sound was off. I messed with it pressing every button and it just says off. any ideas on this???