Step 1
Coil up the buzzer wire around the buzzer.

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Step2
Slide the buzzer under the insulator and into the buzzer space.

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Step3
Make sure that the buzzer wire is on the side of the insulator and the buzzer remains in its slot.

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Step4
Slide the card so that it goes into the slot in the front of the case. Making sure that the buzzer remains in its slot.

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Step5
Press down the card so that the hole goes into the slots at the back.

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Step6
While putting the back case make sure the battery wire is on the inside of the stud

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