i undid mine and got my mate to hold it while i fiddled about putting it in, its a rubber cap at the top of the light, i dont think you need to move the light on the passenger side, i cant remember though
_________________________
Red Escort 1.6LX
Then - Red Escort 1.4
Then - Silver Fiesta ST 170BHP
Then - White Fiesta ST MR200+
Now - Mitsubishi Evo IV Forged 2.3 500BHP
and Mondeo Mk3 2.0TDCI