Also if i may crave your indulgence a little further, my research on the forum seems to suggest that the most convenient power source to tap into is the tail light feed? I'm going to go with that (if i can find it) unless someone knows some place easier?
And the HiD50 reference? I just wish to add that i've replaced the standard bulbs with the HiD50 conversion. Actually i went for the 35W version and i'm well pleased with the result. I can recommend it to anyone who is thinking about it. Lighting is much improved, all the extra gubbins are nicely tucked out of sight and most important - that cool pure white light so looks the business
Kind regards to one and all.
<mildly amusing/deeply profound footnote pending>