Every time I hook up the battery I keep blowing the main battery fuse I tried replacing the fuse and it keeps blowing

You may have a bad ignition switch. Completely remove the switch and harness and see if the problem stops. If it does, replace the switch. Here's how to do it:

1. Disconnect negative battery cable.
2. Remove dashboard lower cover and knee bolster.
3. Disconnect 5-P connector from under-dash fuse box and 7-P connector from main wire harness.
4. Remove steering column covers.
5. Insert key and turn it to "0".
6. Remove two screws from switch and replace.