If your wanting to try it, go for it.
This half-assed diagram I made might give you an idea on how to wire it. I can help you out more later if you decide to do it.
nice! ok, i was talking with a guy that do samething on antoher car.
said me he used a LM317 for dual bright.. he used one with regulator for get bright i need and low to 6v for low I and for brake like i assume 12v or so.
i was learning yesterday about this things (i like this kind of electronic lol) and made this for know what resistor i need for low to 6V
and:
12-6/0.020A (20mA is use LED, says this on description): and i got 300ohm.
ok then using a LM317 with 300ohm for get 6v is Ok if im right, but what i dont know is how to connect it, well really i think i know how should go
civic has two wires for low and brake light, so ill need two LM317s?