Tucson and Others with Radar on Mast - We sail a Catalina 30 MKIII, 1995 on the Great Lakes. When I took the mast down 3 years ago I found a massive nest of wires stuffed into the base of the mast. We have cables coming down for: Wind; TV; VHF; Radar; and all the usual Mast lights. Most of these simply connected with open screw in type bus strips inside the base of the mast, no insulation around them at all. The Radar had 9 wires inside it's bundle. Because it all had to fit back inside the base of the mast, I searched for over a year for the best waterproof connectors that would be small enough. I found a terrific product, called Deutsch Connectors, from WireCare.com. On your browser, pull up "wirecare.com"; then pick "Connectors"; then pick "Deutsch". They keep everything very small, but they do require a special crimping tool for the wire connections into the sockets and pins. WireCare will rent you the tool for a week, and it is fantastic, it works without soldering. I made separate dis-connectible connections for each wire, and everything worked the first time, and they were not expensive. I cannot recommend these enough, they really work, and it's all mechanical.
Robert M