Originally Posted by AK370Z

Ok I will break down the 370z stereo system

Base 370z = NO XM antenna because NO satellite radio offered.

Touring 370Z (NO nav) = comes with exterior satellite antenna.

Touring 370z (with nav) = comes with exterior satellite antenna.

Sports package is a performance package. It has NOTHING to do with outside exterior antenna.

DDM motorsports car is touring model (no nav). when he said , "Thanks! The antenna comes on all 370Zs with satellite radio", he is correct. Only touring model gets the satellite radio.