Kenwood KDC-1018 Instruction Manual page 30

Installation
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Screwing the Faceplate on the Unit
Function of the KDC-4018/4018G/2018
If you want to fasten the faceplate to the main unit so that it
does not fall off, screw in the provided screw (ø4 × 16 mm) in
the hole shown below.
Accessory7
2CAUTION
Never insert the taptite screw (ø4 × 16 mm) in any other screw
hole than the one specified. If you screw it in another hole, it
will contact and may cause damage to the mechanical parts
inside the unit.
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