I have a Delphi XM SKYFi that I can move from vehicle to vehicle....
initially I thought I'd be unable to use it in the Titan because there's
no cassette slot to accept the cassette adapter that comes with the
vehicle adapter kit....I attached the "line out" from the mounting
dock into the Titan's "AUX" plug on the dash next to the radio ( The Rockford
Fosgate is what I have) and bingo.....it plays no problem. I located the
antenna on the dash as far forward, in the center, as I could. I mounted
the head off a RAM mount in the tray on the top of the dash. Works great.
FYI the power outlet nearest the driver is always live..the passenger's side
is wired into the ignition. Also the the power outlet near the tailgate is
always live too..........