Pioneer AVIC-Z820DAB Operation Manual page 8

Removing the detachable faceplate
1
Press the button.
2
Gently grip the bottom of the detachable faceplate and slowly pull it outward.
Detachable faceplate
Attaching the detachable faceplate
1
Slide the detachable faceplate all the way into this product.
2
Push the lower part of the detachable faceplate until you hear a click.
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