Fuel pump relay! Guessing from the state of the relay terminals the inners of your fuse box arent going to pretty either. If your feeling brave, and you've got an early early fuse box, because you cant do it with the later types as there plastic welded, you could dismantle the fuse box, rub down all the crappy blue corrosion crap off the inners, put it all back together and have a good as new fusebox!! I did it with mine time ago, its a real mission, took me about a week, and reassembly is a f**kin mare, but worth it for peace of mind!
