I have a X920BT that works great but has one issue. I connect my iPod Touch once the unit turns on and it works great, but once I turn off the car and then turn it back on, the sound is gone but the iPod continues to play. The only way to get the sound back is to unplug the audio cable from the iPod for a few seconds and then plug it back in. The AV1 is set to iPod and AV2 is set to Video. Any ideas?