Are all ducati headlight wiring harness connectors the same? I'm looking for a headlight wiring harness to solder the connector end  to an aftermarket headlight so I can switch back and forth between my original headlight and the aftermarket. I found a 748-998 headlight wiring harness for sale but I need to know if the connector is compatible with my 2005 Monster 620.

IMO, just get the connector:
http://www.ducatimonsterforum.org/index.php?topic=56746.0