1991 420 SEL. I want to ask anyone that has a Silverstone CD Changer if there's a small light in the CD changer near the cartridge that is always on. Is that normal ? My battery recently started draining itself if I don't drive it for a few days. The CD changer works good and so does the Becker 1432. Just that little light worries me. It's there to light the way when you want to change the CD's to let you see the cartridge but it should turn off after you lock the car. Even tried sliding the CD changer door closed, lights still stays on inside the box. Thinking about trying to disconnect the bulb inside. Thanks