If you want some 12V + switched power, I tapped into the cigarette lighter wiring near the connector end, behind the bezel where it connects to the actual lighter itself. Be sure to add an inline mini-fuse holder (my Sirius Sportster SP-TK1 had a 3A or 3. 5A fuse in the cigarette lighter plug) if there's one in your cigarette lighter plug. May as well use the existing ground at the lighter, too.
The wire under the right side vent is for a passenger side airbag switch... . can be used on the 4 doors, but is already equipped with a switch for the two door trucks (all the dashboards are the same whether it's a two door or four door, obviously).
Greg