Now you are going to kick yourself for drilling holes in your factory trim. get a set of power mirrors off of a pulsar 87-90. Take the mirrors apart, the mirror housing from the base, the pulsar mirror will bolt to the S/C base with 2 of the 3 screws. and you can wiggle the wiring through the opening on the base. the wiring is really easy taking the wiring from the donor pulsar is the hard part I removed the dash it made it easier. Luckily nissan used an independent harness for the mirrors so you just have to find it and pull it from the rest of the harness. the only two wires you need to cut are the + & - wires. installation is a snap.
Also when you get the mirrors if your lot has a good return policy you can abuse it since they always mark the inside of the base you can later return the Pulsar base with the S/C mirror for a refund.
And they look like factory you just have to find a nice spot to put the control I only paid 30 bucks before I returned my mirrors something like 8 bucks after that