Chapter 2 Standard Configurations
2.1 Planning the Installation
The APX 7500 radio operates only in negative ground electrical systems with a valid operating range
of 10.8VDC to 16.3VDC. Before starting the radio installation, make sure that the ground polarity of
the vehicle is correct. Accidentally reversing the polarity will not damage the radio, but will cause the
cable fuses to blow.
Planning is the key to fast, easy radio installation. Before starting the installation, inspect the vehicle
and determine how and where you intend to mount the antenna, radio, and accessories. Plan wire
and cable runs to provide maximum protection from inching, crushing, and overheating.
Before installing any electrical equipment, check the vehicle manufacturer’s user
manual for warnings or recommendations.
The installation of this device should be completed by an authorized servicer or
installer. Failure to properly install the device may result in damage to the device, or
improper operation.
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C a u t i o n
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