Yes I had the COn Star antenna and I thought about trying to use it but there was reason but I don't remember why. I think it had to do with the connector and not wanting to cut and splice the one that came with the Pioneer head unit.
But the one that it came with was 16.5 feet and was long enough to where I mounted it which was just in front of the third brake light on roof of the cab, it has a magnetic base and sticks pretty good. I was worried about it moving around and scratching the paint but it never has.
I filed a tiny notch in the bottom of the plastic on third brake light cladding for the cable to pass under it with out being smashed and to hold it. Then routed the cable though an existing rubber grommet for the TBL wiring, then along the headliner to the A pillar. I just remembered why I didn't try to use the COn Star, it was because the Pioneer head unit has an GPS antenna and the Pioneer XM/Traffic add on has a GPS antenna so there are two and trying to use both though the COn Star antenna was probably not a good idea and would just lead to problems. I already had a big project with putting a double din in an 2002 that came with a din and a half.. I think I had at least 42 test fittings for the radio and heater controls that had to be lowered..