Well, here;s what I learned today. I went to local HD stealer and asked one of the parts guys about the connectors. At first, he wasn;t familiar with the B+ connector. But, after me showing him, he understood what it did. I asked about the accessory connector. Looked it up and the Deluxe does not have one. The 4 pin (3 wires though) deutsch connector is in fact the Data Link, which makes sense because of the color code wires match up woth the electrical diagram, and not the posting I had read for the accessory connector.
So, he showed by the accessory apdapter (PN 70270-04), and it also comes with a mate connector. But, not the pin for the connector. Does that make any sense!! The pins have there own part number. So, bottom line for the B+ Connector, I could use it once I get the pin. So ,for about $18, not bad, and a neat connection. I also need to fuse the line for 3 amps.
I had mentioned that maybe use the battery tender connector. Bad idea!! It's like a 7 amp connection after looking at the spec for it. don;t want to fry me hands and ass if **** hits the famn with the heaters.
Then there;s the fuse box. Why not put the heaters on its own circuit. I'll connect to the spare, with a 5 amp fuse. that way, if anthing goes ballistic, I only blow that circuit and nothing else. So, that;'s what I'lll be doing