Has anyone had an issue with this unit "locking-up" After about an hour of riding the control of the unit locks up and won't respond to any input from the handle bar control. I was out last week riding and when I came to a stop I tried to turn down the volume and nothing happened. I turned the bike off and the music still played. I had to pull the SD card out to kill the thing but that only killed the sound not the unit. To my surprise three hours later my batery was dead. I had to unplug the unit and recharge the battery over night. This is the third unit I've had that does the same thing in locking out control but I have never had an issue with it staying on like this and draining the battery! Has anyone else run into this issue? I am certainly not trying to slam Pete, I just want to see if i have a bigger issue than the player.