Can the PAC SWI-X used in conjunction with the PAC AAI-NIS2 and factory bose radio to control the iPod from the factory steering wheel controls?

 

No. Aside from the SWIX being an infrared remote controlling device, which the HU does not have a remote receiver, even if it could work, it would be a complicated method of duplicating the stock steering wheel controls.

The PAC SWI doesn't add controls. The controls are HU dependent.