So I bought 4 non oem illuminated door sills. I've looked it up and have seen that I do need a wire harness. Is there somewhere I can find this wire harness or maybe another way to make them light up when the door opens?

 

See if you can tie them into the interior light switch... the plunger that turns the interior lights on when you open the doors... might work...

 

my buddy did that with his 09 si, looked pretty cool till it got jacked

 

just tap into the existing wiring.

 

i figured it out. was pretty easy.