So i was installing an after market backup camera and found this oring. Does anyone know where it belongs? I removed all the panels worked with the license bulbs too.
It's not an O-ring, rather a grommet that fits into a drilled hole in the sheet metal to protect a cable or hose that passes through. Your battery vent tube should go through a grommet like that.
Looks too big for the battery vent tube. More like where the wiring and/or washer tube goes through from the body into the rear hatch. Poke around and let us know what you find.
