What does the white wire clip to?

Guys the black wire which was connected to the back of the old voltage limiter is anchored to a bolt coming off the steering column. I'm think it is a ground. I think my mistake was to ground it on the same post on back of cluster that red wire bolts to. I think the red wire carries a lot of voltage/amps and I must of caused some overload or feedback surge. If you guys need pics I can send them. I saw smoke and heard a little pop at the engine side bulkhead connector. Would burning out the fuse able link kill all the power to my headlights dome light etc. Should I replace fueable link with correct mopar replacement part higher quality or buy it almost anywhere? Could I test the connections for juice at the engine bulkhead connector with test light? I'll just look at schematic to figure out what is what at bulkhead connector.

Carl