ok so there are 4 wires on the JDM high/low bulb harness
even if there are 3 its still ok

and there are 2 sets of 2 for each headlight on your USDM, so find out which 2 of the 4 wires on your USDM harness's are grounds, and wire it up proper.

then wire your corner/running lights, into the inside bulb, thats all

its pretty simple if you think about it

~boomer