When I purchased my Euro lights from Bekkers, they came with the 5-prong mate. All I had to do was remove the wires from the old 4-prong and plug 'em into the correct positions in the new Euro 5-prong. I'd say you need to contact the supplier of your Euro lights and get the 5-prong connectors.
*Pearl Black AMG rims, yellow calipers
*Pearl Black grille and frame
*Euro headlights, clear blinkers
*Zebrano wood kit
*H&R springs/Bilstein shocks (yet to be installed)