I've never done it my self but if you are after abit of advice then you could always have a chat with Mark on tgtt (www.glanza.co.uk) He imports them him self and could point you in the right direction! Marks a good lad and sure he'll try and help where he can! http://www.toyotagtt...ww.glanza.co.uk I think i still have a contact number for Mark but havent called him for over a year so not sure he's still useing the same number