A note on the PAC OS-2 Modules from the install pdf...missed this earlier "Retains door chimes when used with PAC’s optional CM1 chime module" The PAC OS-2 Product description was a bit misleading, said it retained chimes...no mention of a module.

Heres the $40 Chime module... PAC CM1 Module

The guide in the how-to list shows using the OS-4 as an option, but the grand prix isn't on the list of supported vehicles for it, also looking at the documentation on them they go to different factory harnesses...

The OS-2 Shows connecting to a 24pin and 12pin factory harness, anyone know what connectors a 2006 Grand Prix has? - Save me an hour or so of pulling it and checking just to put it back and wait a week for stuff to get here>=D.