Actually nothing, noting Lexus did. The retard that put my stereo in used a .99 battery terminal connector when he connected the radio up to my battery, and he discarded the original that was on there for the positive side. I know it's a .99 piece cause I saw the same one when I hiked a couple miles up the road to get a replacement, the proper replacement. Some of those stereo install freaks are RETARDS when it comes to the rest of the car. I seriously think I could have gotten a better connection using a wire twist tie.