Does anyone know what kind of cable/wire/cord runs between the heads and the cpu unit? I'm going to look into soldering/crimping in some connectors so I can easily remove the heads without having remove the entire cord that goes into the main cpu unit. It would just be that much easier since it would be such a pain removing all that wire once its in place. Winter is around the corner and I don't want to run the heads all the time unless I'm cruising on the highway. Is it a telephone wire? rj45? etc?