We just purchased a 2010 Terrain SLTT-2. When you go into the CONFIG menu, it gives you the phone option, click phone and it gives you the bluetooth option. But when you click bluetooth, it comes up as "not availabe". Is there something I need to do to activate that? I'm confused as to why it's even an option in there if it's not set up on the rig. Thanks for any info you can provide! 