Even as the same colors, the relays arent the same. There are schematics on the side of them which shows what happens when activated. I had a friend do this on my car a few years back, caught my engine harness on fire. As far as the humming goes, unplug your idle control valve, see if the humming is still there. __________________ 1995 Hellrot Clubsport 318ti -Gone 1996 Schwartz II Sport 357ti - 5.7L V8 LS1/6 1997 Moregrun Metallic 318ti - Gone 1998 Schwartz II sport 318ti - M50TUB25/5 |