i traced the problem to the interior of the car. I was getting a ground signal from the one side of the main fusable link and when i pulled the fuse labeled BTM it went away. So i looked in my handy owners manual and read all the things that that fuse runs and when i pulled the room fuse the ground signal got really weak. I started to drive the car and my main fuse blew again. I also put the battery back up front and i was using 4 gauge wire.