I bought the Kenwood Excelon KDC 895 unit so I can use both the Kenwood XM module and the Kenwood HD Radio module. Problem is there is only one 13 Pin on the back of the Head Unit. I want to run both. Can I run a RCA Splitter from a 13 pin/RCA wire? Did a search. Didn't find a similar problem. I hope this isnt an either or answer - HD Radio or XM. I really want both.