Finally got around to hooking up the trailer lights
First off, in order not to affect the existing i-MiEV lighting system and to also not bother bringing separate turn signal and brake lights out of the car, I decided to use an electronic buffer/combiner called a Powered Taillight Converter. I bought a CURT p/n 54146
which is good for 3A brake/turn signals and 6A taillights and comes with a standard trailer four-pole flat connector. I picked mine up on Amazon for less than half that listed price.
Next, where to find 12v? My trailer-hitched i-MiEV is installed in Mitti
which has the high-power audio amp and thus supplies the amp directly with 12v. The amplifier is located inside the car under the plastic cover above the left rear wheelwell. Simply tapped into one of the two fat red
wires (fused by the car at 20A).
While I had that left cover removed, I tapped into the green
left turn signal wire. I also noticed a common ground point towards the aft end on the left side so I attached to it using an eye on a length of black
12 AWG wire. Made a neat bundle and zip tied it and brought the three wires over to the right side of the car underneath the threshold at the bottom of the hatch opening.
Removed the right side aft panel and picked up the light green
(right side) taillight, the violet
brake light (not sky blue like I thought was in the wiring diagram), the blue
right turn light, and hooked up all the wires to that converter (the converter comes with wire taps). Attached the converter to the car body above the wheelwell with the supplied sticky foam tape and zip-tied all the wires. Everything nicely located behind the cover plate on that right-side aft panel and the wire is plenty long to bring out from behind that panel and under the tailgate to the trailer connector. Sorry, forgot to take pictures.Edit:
Photo here: http://myimiev.com/forum/viewtopic.php?p=26303#p26303