BvtnDave

This is my first contact with the forum. Lot's of great info here, so thanks for that. My recently-purchased 1973 240Z has the common fuse box melt issue. I am leaning toward the MSA box as a fix, but want to repair the underlying issue(s). Can someone enlighten me as to the "Dave's parking light harness" and headlight relay harness references in this thread? Thanks in advance.