Alpine DVA-9860R Owner's Manual page 57

Installing the External Junction Box
When external audio processors (PXA-H510, PXA-H700, etc.)
are connected to the Fiber optic cable, be sure to securely
install the External Junction Box using the supplied Velcro
fastener so that the Fiber optic cable will not be damaged.
1 Remove the Protective paper and attach of Velcro
fastener to the bottom of the External Junction Box.
Velcro fasteners
(included)
2 Mount the External Junction Box in a flat location where
it will not interfere with driving operations (floor carpet,
etc.).
• Make sure to apply the supplied velcro fastener to the bottom side
of the External Junction Box to secure stability. An unstable box
may cause accidental damage to other equipment, such as cables,
etc.
• If the External Junction Box is installed in the foot area, route the
cable in a location where it will not be stepped on.
• The External Junction Box may become hot. This is not a
malfunction.
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External Junction Box
Protective paper