The best way I have found to do these is to drill the holes, and cut a piece of music wire to length (About 3/8" shorter that the distance from hole to hole)

Solder one of those electrical eyelets on ONE side and slip one on the other side.

Once all 8 wires are ready, screw them into position.

Now solder the other eyelet onto each wire - take precautions not to drip solder onto the covering! Or, if that makes you nervous, JB-Weld them in place.