No, you can't RF tether that seat to the same seat it's on. The tether spot must be forward of the seat's location.
Can't help you on finding a spot but wanted to confirm that.
Britax does allow Australian style tethering as well - in this method of tethering the versa tether is routed toward the back of the vehicle and attached to the manufacturer tether anchor that would be used for that seating position if the seat was forward facing. Australian tethering functions differently - it focuses on preventing downward rotation whereas Swedish method reduces and for the most part, prevents, rebound.
When tethering swedish style, you are correct in saying that it can't be tethered to the same seat and that it must be forward of the seat. (Towards the front of the vehicle.)
Tethering Australian style would still provide the same potential benefits in a side impact collision, so is an alternative if Swedish tethering won't work in your vehicle. The hard part about Australian style is it means maneuvering the child around the tether when putting him/her in & getting him/her out of the seat. :thumbsup:
I believe Lovinwaves has a post in the article forum about how to tether to the center tray in the Ody. I know from prior posts that the seat tracks just can't be used in the Ody. More and more vehicles are starting to have completely enclosed seat tracks, so I think it may become more common to not be able to find an appropriate place to place the D-ring.