Does anyone know if there are any compatible back up sensors from other Toyota vehicles that will work as a replacement for the 07-09 Fj? I would like to try and get a working one from a pick'n pull, but I can find little in the way of cross compatibility information with other Toyota models. I have read several other users have had issues with the knock off not being watertight and failing after a few months. Ideally being able to replace it with an OEM sensor without the stealership price would be awesome, thanks for any input!!!!