Well I just recently purchased a datamaster cable from another member on the forum. I went out to my truck tonight to do a couple of runs. I had the interior lights on and the first thing I did was plug the pwr connector into the cig lighter and my truck made a funny noise and the roof light turned off and the radio display went blank. the only interior light that works normal is the floor lights. It cleared on my radio stations from the presets. If any lights are on the radio will have static and the display is blank. When turning on the headlights the roof light comes on. I disconnected the battery and held the cables together for 2 mins and no difference. What the hell happend. Any ideas would be great. I am too pissed to think of anything. Thanks