On the preface model, you have two physical holes in the bumper and the two sensors in the middle are located in the grill. I've screenshot a photo I have of my car and the sensor in the grill. If you need me to get a better pic let me know. That plastic you have may be the bit which clips into the grill, I say may as I'm not sure, but with it saying RH Inner I'd say it's a solid guess
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Because I'm feeling especially helpful, here's photos on either side I've just taken
Left hand side (as you look at the car)
Right hand side (as you look at the car)
Sent from my LG G4 using Tapatalk
Sent from my LG G4 using Tapatalk
Because I'm feeling especially helpful, here's photos on either side I've just taken
Left hand side (as you look at the car)
Right hand side (as you look at the car)
Sent from my LG G4 using Tapatalk