ok so i opened up my guitar today to fianlly fix the ground wire. from just looking at the wires on the back side it looked like the ground was one wire for the whole thing..but when i took my pick ups off to see where it wasnt connected it ended up being mutiple wires one for each pick up and now i cant figure the whole mess out because they are all connected and stuff. So what i was wondering was would it be safe to reinstall just one ground wire on the whole entire thing and if so what all does the wire need to be touching i know all of the pick ups and the bridge but what else?
If it's a Strat, while you're in there you should properly shield it. Use this article for instructions on how to do it properly.