There are two different Bluetooth modules in the car.
The Bluetooth in the Onstar which provides the hands free for your cell phone.
The other Bluetooth module is in the PDIM. Besides providing a USB port, the PDIM allows you to stream audio via Bluetooth from a cell phone.
As of right now the only way to add Bluetooth hands free calling to a 1SS is to buy the Bluetooth capable Onstar module from a 2SS. The only place that sells them is ebay since dealers won't/can't sell them. See thread: http://www.camaro5.com/forums/showthread.php?t=51929
I would update your Bluetooth connectivity "option" to mention that it's for music streaming.
As of right now the closet thing to adding Bluetooth hands free calling to a 1SS is this: http://www.camaro5.com/forums/showthread.php?t=57275
I would list the 4 pack gauges and PDIM (USB port/Bluetooth music streaming) as 1SS accessories.