Using the supplied screws and washers (three per mirror), mount the mirror assembly to the mirror arm. Make sure that you position the mirror in the unfolded state when screwing the mirror to the arm. You can now route the cable along with the wire guides and out the mounting face. Finish up by re-attaching the lower arm cover and rubber isolator. Hope you noted how to route the wires behind it! In case you didn’t, send the wires around the inner perimeter to the center opening so they can exit out the inner hole of the rubber isolator.Now, if you didn't do both mirrors at the same time, grab the other mirror at this time and follow Steps 1-8 for the other side. We’re finally done with the mirrors!Let’s reattach them to the vehicle with the three original 10mm nuts. Make sure the wires are cleanly pulled through to the inner side of the door. Be careful not to lose your 10mm nuts in between the door panels because they will be lost for good.Now that we’re done pulling the cable through tight gaps, we can reassemble the two inner connectors into the outer housing and plug it back into the mirror receptacle. The power wires from the motor remain free.