CC18: Where to get matching connectors
All connections to the CC18 are via 0.1" (2.54mm) pitch single inline friction lock connectors. These are frequently referred to as "KK" type, which is the name given to them by Molex. All sale versions versions come with matching connectors, but you may want to source them in a different form for mass production manufacture of wiring looms.
You would normally buy the connectors as plastic housings plus (separately) crimp terminals. The Molex part numbers are 22-01-2xx5 for the housings (xx=number of ways) and 08-50-0032 for the terminals. You can buy these from Farnell, Mouser, Digikey and many other suppliers.
The connector sizes you need for the CC18 are:
Inputs and outputs: 4 x 6-way
Power: 1 x 3-way