1994 E320 door vacuum motor bad?
 

Ok, I stopped to pick \up some things, and noticed my door locks would not work so I locked them all manually, went in the store, came out and it would not start.
Checked fuses and the C fuse was blown. Replaced it (thankfully I had a couple of spares) blew immediatly. Had the wife stand ready to start it, popped in the fuse and actually got it started before blowing again. Drove home and started unplugging systems and replacing the fuse until it quit blowing. Tried the antenna motor, nope, then removed the rear seat and unplugged the vacuum motor, walla, it does not blow the fuse anymore, starts fine, radio works, front dome light timer works (oh I didnt mention the front dome was on the whole way home, and oh, the radio came on but no sound so figured the fuse had to be controlling the amp too).
Is the vacuum pump bad? what else could it be?

Any help is much appreciated,