the caps simply screw into the wire, put the rubber sleeve on the wire first then slide it over the cap when fitted, with the coils unscrew the knurled plastic nut at the front of the coil, inside that you will see a rubber grommet remove the grommet put the nut over the wire thread facing the coil, then place grommet over wire, inside coil you will see a metal pin push wire into coil over pin, then slide grommet and nut up to the threaded part of the coil and screw up, the nut and grommet will clamp the wire in
merv