Here is a how - to - guide I made for anyone that is interested in installing the HCB-30 Bluetooth Kit for our 05 GTO's. I still need to document on how to install the phone buttons, but I haven't ordered the buttons from hunter holden yet. As soon as I get them I'll post instructions.
Here is the link http://members.cox.net/05gto/interior
Here is the link http://members.cox.net/05gto/interior