I did mine on the right hand side. Take the light out, connect brake, position, ground, and right side indicator there. Then on the left hand side, connect only one cable to the left hand indicator.
Inside the corner rear of the car, where the light is fixed to, you can feed the cable through a rubber type of cover which is loose and just sitting there t the bottom (you'll see wht I mean), on both sides.
I soldered all of my connections, to avoid future problems.
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