Sounds to me like you 2 are have a problem with definitions. What is a tuner, what is an adapter, what is a cable, what is a head unit, what is a radio etc.

 

This is the best i can do


Radio (in front where you change the volume)
XM factory tuner (back passenger side of vehicle)
XM antenna (on roof)
XM antenna cable (pull out of XM tuner)
Aftermarket XM tuner (behind the radio where you plug the ugly antenna in that you want to get rid of)

XM antenna extension (run this from where you plug the aftermarket XM antenna (ugly thing you don't like) in to the XM antenna cable (in the back where the Factory XM tuner is)

 

Spacecowboy...
Any idea where I could get the extension you are talking about?
Thanks for any help

 

i used google and this was one of the first things that came up

https://www.google.com/shopping/prod...ed=0CGEQ8wIwAg