JVC KW-Z1000W Instruction Manual page 100

Troubleshooting
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Apple CarPlay
The GPS antenna must be connected to use
Apple CarPlay wirelessly. Please verify the proper
connections or plug in by USB to use Apple
CarPlay.
The GPS antenna is not connected when the Apple
CarPlay is started by connecting wirelessly or when
the iPhone compatible with wireless Apple CarPlay is
registered in [Device List].
† Check the connection of the GPS antenna or plug in
over USB to use Apple CarPlay.
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