Painless 28-Circuit Fuse Panel in Tuffy Glove Box The Patina Bronco I installed the older Painless harness that did not have the fuse box in the glove compartment. It normally mounts on the firewall like earlier Broncos. Both the firewall mount and the glovebox mount make it hard/awkward to get at the fuses when needed.Wiring: 3G, MSD, and Painless 20 circuit fuse boxMay 14, 2012Centech wire harness vs. painless Painless fuse diagram Painless wiring harness problems See more results Fuse Box - Ohio's Premier Early Bronco Club broncohio I've had a bundle of wire hanging out from under my dash for a long time from accessories I have added. I've looked around for a decent add on fuse box, but they're all way to expensive. One that I've been looking at was the Painless Wiring 7 circuit (3 constant, 4 switched) fuse box, but it goes for about $75.