Recently acquired a CA9100, and want to be able to leave it running in my bag at the base of a 9 ft stand. The CA-14s I have are wired with only 5 feet of cable, so I'd like to extend them with coupler and additional length of cabling. Will a quality coupler be able to pass along the 9V from the CA9100? If so, what recs do you have for a brand that produces quality couplers?