The lovely people at HIDS4U advised the following for a 2004 or later model:

"As your vehicle has a bulb warning system you would need our "Ultimate" kit. This kit will be compatible with that system and the warning light will not come on.
Please follow this link for more information.
H7 Xenon HID Headlight Conversion Kit for Can-Bus: HIDS 4U"

Of course this is more expensive but the warning light would be a bit of a nuisance I suppose