I i am going to purchase a d1 or d2 , do i need the pioneer xm module if i dont want to do xm traffic. For just xm radio, can i run it through the factory module on my 07 trailblazer with bose?

youll need an xm module yes if you want xm. the only thing you possibly could use from the factory equipment of your vehicle would be the ant... maybe. but the xm module comes with one.

In fact, I have a used one if want. Ill let it go for $75 shipped to the u.s. by priority mail. let me know if you are interested.

the Pioneer GEX-P10XMT module is for XM Radio WITH NavTraffic. The one I believe Tillithz is selling is the Pioneet GEX-P20M Module for XM Radio ONLY. And the $75 he is selling his for is a good price.