i have the xenon hd lights kit with a relay. Recently they start going out when I am driving(not ok!). To get them to go back I have to shake the box of the relay. I checked all the wires and they seem to be fine. What could be causing this?? The kit is only a few months old and I've never had a problem with it before.

 

Xenon are always known to do that. possibly the ballast itself or relay wire loose