2006 mazda 6 wiring

my son has a 2006 mazda 6 .r.f headlight has the module on it ,got into a wreck and has to replace headlight . he bought a used one but it does not have the module . is there a way to take the headlight housing apart and swap out the wiring? also there is a wiring horness that goes to the w  washer ,has alot of bare wires that were cutoff,going to need the pigtails .anybody ne where to get the pigtails at a cheaper price than bying a new horness. also need wiring diagramn. thanks

http://pdftown.com/Mazda-6-Workshop-Manual.html

I hope it will help.