you have to hack off the rubber bit going around the wires, i think its the wire thats darker, but if u have a look at it, it is able to be found..... if u cant, jsut hack one, try it, if not, try the other... but you also have to pick the right coil, cause with the ca20e one is for the other set of plugs, which only detonates after 4000rpm......ill get a pic and show u when i get the chance, i havea tacho on the a pillar...