Sensor Cover Behind Windshield

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Mazda CX-9
I had a 6 inch strip installed and the installer took the rain sensor out of the box to put it on the side because the sensor would not work correctly. how can I put the sensor back in the box?
 
I am confused. What year is your cx9? My rain sensor is permanently glued to the windshield. Had a new windshield put in and it included a new rain sensor already glued on. Can you elaborate?
 
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