I got DDM 3k HID's on my fogs and they constantly flicker on and off when I have my A/C on, I have checked and checked the connections and even sanded down the paint off the chassis for the ground wire to get a better connection and I dont know what else to try. Every flickering is annoying, sometimes one of the fogs turns off completely and I have to turn them off and back on to get them working again, but then they flicker again. Any ideas what the problem might be here??

 

most likely a bad ballast..

 

^ He's right had a headlight do this. Bought a new ballast and bam! Depending on how long you've had your ballast you should just be able to send an email to the guys you ordered it from and they'll send a new free one. Just say the one they sent was bad.

 

x2