Yea i have it hooked up to a pink wire (had no idea what it was when i hooked it up, but the illum wire, and the pink wire from my car were the only 2 wires left so i hooked them together //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Anyway i guess thats the parking light wire cuz it does dim when i turn my lights on. I dont have the p4000 anymore but i remember when i had it it didnt have any green illumination on it, and ones ive seen on websites have green buttons? The model im upgrading to has the green buttons to so i wanna make sure i hook everything up right so they work this time. Not using a wire harness in the car btw, everything is hardwired