my brother and i bought a blazer, trailered it home.

i need help it cranks but wont fire up. it maybe due to all the electrical things unplugged.

1. this junction block in the first pic has two bolts on it, the one that is closest to the drivers door is a a red color wire that has a fuse link on it then the other end looks like it is going to the gas

The red wire also has a fuse link on it. usually ive only seen a glass fuse there, but the person we bought it from must of had a issue with the glass fuse and put a fuse link in that holds a atc fuse.

what is that red wire and is it connected correctly and is that atc fuse link ok? if so what size fuse should be there?