Just a small rant on Painless wiring. Part # 30821 .I bought a headlight relay to bring on both low and High at same time. They asker all the info and I told them 99 Suburban..They sent aackage that said 1999/2000 Suburban.. The kit was wrong it was for 2000 not 1999.Different wiring for those years..You have to jump through hoops to return this thing I paid 60+ dollars for pluss return shipping . They tell me that GM had 2 different wiring systems for 1999. So that is my fault.. Still don't have refund but they have had the part for about a week. I know this because I had to get them a tracking number. OK I'm done just shows they all have problems with parts.