The instructions you are following that call for the use of a button in the center console are for vehicles with the Visteon BT module (2003 and earlier). You have the Motorola combo Assist/BT module in your 2006.
I'm not sure of how you unpair all phones from the vehicle other than to try deleting that profile from your phone. The BT module only pairs with the most recent 4 devices mated to it, so you could also try pairing some other devices so that your V3 falls off the list.
