Im trying to hardwire my x50 in my Auid A6 (2001). Let me know if im wrong but from what i heard Black is negative and Red is posivitve in X50 as its always been a standard. So i found a place where my lights are at, there are like 20 cables and all of them are different color, but its ok, i actually found the ones that are positive. My question is that, there are 6 cables going to this light bulb, 4 of them are hot, do they just split 12v by 4 cables (3v by cable) ? because when i connect positive from x50 to one of these positive cables radar will flash and make funny noise like there is not enough power. And all of my cables are like that, there is always at least two positive going to a light bulb. Im just curious if anyone ran into similar problem, because i have been working on this crap for almost 2 days now and I know it takes less than 30 min to install. Any idea ?