I've spent the last 4 hours putting the factory stereo back in my 99 528i. The radio works fine but the CD changer isn't getting power, it's not being recognized by the radio and it won't even eject the magazine. I've hooked up the 3 pin connector and the other bundled connector. There are 2 more female connectors on the back, but I have nothing to go in there. Are there supposed to be wires going to those two connectors? Could it be a fuse? The changer has been in a box for 2 years and it was working when I put it in. I'm delirious and pissed because I'm selling the car in less than 12 hours. So any advice on what to check would be greatly appreciated.