okay if you can get your hands on an AutoProbe that would be useful...attatch it to the battery. go to your in car fuse housing and check each fuse individually while NOT uninstalling the fuse. you can check it by touching each side of the fuse prong (they will be on the top of the fuse and look like peices of metal on top). when you do this the probe will either light up green or red...if both sides are green the fuse is fine, if both sides are red the fuse is fine as well.. but if its red on one side and green on the other change it....its blown.
hope i helped..seya