The wire in the "knee" has been worn out for more than 25 years. This new part had the wiring harness already installed so replacement was fairly easy - just unplug the existing wires one at a time and plug in the new wires. Looks OEM quality so I hope I never have to do that again. UPDATE: Well here it is, January 2021. I had the part 1 year and 4 months before it broke. Not exactly the durability of a genuine OEM part that has lasted over 20 years. Will they be nice and just send a small bundle of wires to fix it? I'll let you know. I have contacted the seller. Here it is, a few days later, with no response. Looks like I'll be buying this piece from someone else this time.