I was having problems with my battery going dead after car sat up for a few weeks. I decided to buy one of those new Optima batteries. It would loose its charge too. While this was going on I had a window valet installed at the same time. Everything was fine as long as I used the car. I also had Progressive Insurance and asked to use a Snapshot device that they advertise to check your driving habits. To use their device you have to remove the window valet because they use the same plug. The battery didn't have a problem for six months. I removed the snapshot and pluged the window valet back in and the battery is now drained again. I really think the valet is doing this. Has anyone else had this problem? And if so were you able to correct it. I really don't want to throw away the valet and I also don't want to be unplugging it every time I park the car. Any good input would be appreciated.