Hertz - where exactly did it break off? If the seperate wire that goes to the battery terminal broke off, yeah you could just replace the end connector. If its At the bottom of the fuse box, You can take that fuse box fully apart, read below! You need to buy yourself a digital camera, fou!
Mark - I am with you here. I wanna use an inline fuse as well.
I tried to re-do this auxillary fuse box in vain when I was re-wiring the battery to trunk. I dont have manual seat belts or ABS, so I pulled 3 of the 4 fuses out. All that remains is a 100A fuse under alternator.
So, for shits and giggles, I took that fuse box apart and unscrewed the terminals on the ABS (red positive and white negative). The car would not start. Basically, without the red and white connected although it was marked ABS. No fuse there. No idea why? anyone?
On the 100A middle one, there is a mess of wires running to it including another red,white and blue wire, I didnt wanna mess with it. I will have someone who can tell me help me do this better.
IMHO, the whole harness will need taken apart to figure out exactly where each wire goes unless someone can decipher what all those wires are.