Notes on installation
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The unit is designed for 12V DC, negative ground operation systems only. Before installing the unit, make
sure your vehicle is connected to 12V DC negative grounded electrical system.
The negative battery terminal must be disconnected before making connections which can prevent damage
to the unit from short circuiting.
Be sure to connect the correct speaker to the correct terminal. Never connect the left and right channel
speaker cables to each other or to the vehicle body. Do not block vents or radiator panels. Doing so will
cause heat to build up and may result in fire.
After completion of installation and replacement of battery, press the reset button on the front panel with a
pointed object (such as a ball point pen) to set the unit to its initial status.
XM-VRSUN728
