First you will need 14 Red or Amber High Out-put LED's, seven for each side and 2ea 150 ohm 1/4 watt resistor and 2 ea 180 ohm 1/4 watt resistor. (both the red and orange led's have about the same forward voltage value Red=1.7 and Orange=1.9)
Remove the bolt that holds in the mirror assembly, this is located on the bottom of the mirror housing. Lift the mirror from the bottom and pull out. Now, if your wife doesn't mind, heat the oven to about 150 degrees and put the mirror and mount in the oven for about 5 minutes, what this does is to soften the bonding agent they use to hold the mirror to the mount. (One word of caution, you can scratch the mirror so be careful) Once this is done you can easily peel back the lip that goes over the mirror edges, then slide a butter knife in between the black mount and the mirror, working the knife back and forth you can remove the mirror from the mount. Don't throw away the bonding agent. After you have have the mirror free of the mount you can clean the rear of the mirror with mineral spirits. Set it aside. With the mount mirror side down you can then drill seven holds in a 45 degree shape to produce an arrow indicator, make sure they are free of any burs of the plastic. Now you can put the mirror and the mount back together, if you have pulled any of the bonding agent off now is the time to put it back in place, put the mount and mirror back in the oven again for 5 minutes, then reinstall the mirror back in the mount and let it sit for a few minutes. Now insert you LEDS into these holes and configure the LED lead arrangement for a "series" application. (Series application you will be soldering the negative lead of one LED to the positive lead of the other.) Just a word about LED's, look at the leads there is a long lead and a short lead, the long lead is positive and the short lead is negative.
Now that you have all of the LED's in place (make sure they are pushed in the hole) you will have 4 LEDs on one leg of the V shape and 3 Leds on the other leg of the V shape. Starting at the tip of the V shape LED 1 and working on the 4 LED leg side, bend LED 1 negative lead back toward LED 2 positive lead solder these together and clip off the leads at the solder joint, at LED 2 bend the negative lead back toward LED 3's positive lead and solder, again clip off the leads at the solder joint. Bend LED 3's negative lead back to LED 4's positive lead, solder and clip off at the solder joint, this will leave LED 4's negative lead free. Now do the same for the other side of the V shape leg, starting with the negative lead, when you are finished you will have 2 positive leads free (both at the same end) and two negative leads free (both at the same end.) Solder the two positive leads together, on the negative lead of LED4 you will solder the 150 ohm resistor, one the negative lead of the leg that only had 3 LED's you will solder the 180 ohm resistor. Connect the open end of the resistors together and solder a 8 inch wire, one the positive leads solder an 8 inch wire. I'd suggest you use heat shrink to insulate the connectors. To secure the leds in place I use a hot glue. The positive lead will connect to the turn signal (positive) wire, and the ground will connect to the Green wire (ground). Then reattach the mirror mount in the housing.
