Sirius XM RAdio Onyx EZ User Manual page 17

Vehicle Installation
SUV: We recommend mounting the antenna at the rear of the roof as
shown .
Convertible: We recommend mounting the antenna at the leading edge
of the trunk as shown .
Pickup Truck: We recommend mounting the antenna just above the
front windshield as shown .
2. Clean the surface of the selected mounting
location using the alcohol preparation pad and
let it dry thoroughly .
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