03 wiring harness negative terminal

My harness is in perfect condition but I need the negative terminal for the battery. Anyway I could get this without buying a whole new harness?? Been thinking of ways to use something else but dont really wanna "jerry rig" my harness Thanks!

Bump... Its the wire that goes from the battery to the frame of the bike?? Just have to buy a new harness??

You should be able to replace that wire with something of the same gauge. No reason to replace the entire harness.