I inserted 1/2" wood screws top and bottom in the little space next to each of the 12 fuse clips in the fusebox, which really did tighten up the electrical contact. First time I haven't had to bang the box to get the lights to work, probably not for the purists but it is working well at the moment, if I survive will let you know if it all burns out. I experimented with nails and self tapping screws first, but the woodscrews had the best taper