Simplified Installation Instructions for rear footwell lights for cars with front footwell lights

Looks like you did the same thing I did. You just tapped into the front footwell light and ran the rear one off of that? (left front to left rear, and right front to right rear)

I did some testing during install and found that doing it this way reduces the light intensity of the front lights by a tiny bit. If they were incandescent, I'd probably worry about overloading the circuit, but these are really small LEDs. Honestly, the hardest thing about the project was cutting the seat fabric and getting those damn plastic holders clipped.

When I swapped my seat covers to convert my interior to the black/red, I pulled the front seats out and used the opportunity to run the wires under the carpet.

 

Basically just by plugging and unplugging the rear light and watching the front. I guessed that it might be happening because the lights are on a dimmer and the car's computer was limiting total power or something. The change was barely noticeable(maybe 2% dimmer with both), so I just moved on.