purchase a set of phillips HID xenon lights, for my Generation 1 MINI Cooper the problem is where does one attach the ballast? has anyone out there, who has came across this problem and has found a solution with the ballast being attached to the underside of the bonnet i'm worried about the effects of gravity and spirited G's while driving.

I hope this is the right forum for this. if not I apologize from the bottom of my MINI heart.