Why does a 99 dodge stratus keep blowing 20 amp starter ign fuse when trying to start?

Unhook the wires on the starter, replace the fuse, turn the ingnition key on as if you were going to start the car. If the fuse does not blow, it is your starter. I just had this problem with a 1996 Dodge Stratus. I replaced the stater and it now works.