This dealtime link shows the blue/gray T connector but when you click it takes you to Cabelas and shows you just the cable. Also I looked on cabelas and saw the red/gray T connector but I believe that is the newer one you speak of.
http://www1.dealtime.com/xPO-Lowranc...Cable-Lowrance
Ran across this as well....
http://www.cabelas.com/cabelas/en/te...-box.jsp.form1
I'm still looking...don't give up on me!