Are the JDM and US headlight switch harness the same just oriented in the dash differently? Or is it a completely different harness?

 

Different part numbers, F044-66-167 for Japan and FB01-66-170 for the US. they kind of need to be different because its a mirror image, and it goes the other way though.
i would imagine it could be made to work if it didn't though.

 

Is this for s4 or s5? Looks like I might have to find new connector pieces and re-pin then.

 

i looked up S4 stuff