I just installed an ICE Link plus in my Passat and I'm really enjoying it. I see it has three charging option; no charge, charge while playing and continue to charge for 2 hours after playing. I had it set to charge while playing and the Ipod charge ran down to nothing. I've upped it to the 2 hour charge option, but I'm wondering if this will cause problems with my car battery running down. Does anyone have any feedback on if using the 2 hour charging option will cause problems for my car battery? I pretty much just leave the Ipod in the car and don't charge it any other way than with the ICE Link, but if that's going to be a problem I can change my habits. Thanks.