[Daz36]

Yes you can, it has to be done in the wiring in the indicator stalk.
Very easy to do.
When I log on on my pc I will send you a link to how you do it.
I take it you have twin headlights?

 

[Daz36]

Heres the the mate.
http://www.brick-yard.co.uk/forum/how-to-fit-caravelle-headlights-hids_topic28644.html