Buy a good connector... Dependent on options you can call many of the suppliers and they will set you up with a part number.
Mouser is one of the best places to buy one from.. LOTS of options they are not cheap by any means as well as the 300 dollar crimping tool.
http://ca.mouser.com/Connectors/Circ...tor/_/N-9ulxv/
www.Prowireusa.com Also sells Duestch autosport.
Ebay is also loaded with them.