Got the wideband installed and thought I would share:
I ended up going through the grommet on the floor in front of the passenger seat. There is a rubber grommet in the floor board just in front of the passenger seat. Pulled out the grommet and modified it for a wire, and cut a small slot in the carpet for the sensor wire. Then routed the wire up through the center consol next to the shifter and then up behind the glovebox to get to the drop power source. Overall, worked out pretty well. I can post up some pics soon.