Elite VRVD640G - Manual (Page 5)

5
PRECAUTIONS
Please read these important pre-
cautions BEFORE attempting to
install this unit.
• Disconnect the vehicle’s negative bat-
tery terminal before starting installation.
Consult the vehicle’s owner’s manual for
proper instruction.
• The unit is designed for a 12 Volt DC nega-
tive ground operation system only. Before
installing the unit, make sure your vehicle
is a 12Volt DC negative ground system.
• Mark the polarity of the existing speaker
wires before disconnecting the old head
unit.
• Be sure to connect the color coded
leads according to the wiring diagram.
Incorrect connections may damage the
unit or cause the unit to malfunction or
cause damage the vehicle's electrical
system.
• Make sure all the connections are com-
pletely correct before turning on your
unit.
• When extending the ignition, memory
backup or the ground cable, use 0.75mm
diameter (AWG18) or heavier automotive
grade cable to avoid wire deterioration or
damage to the wire coating.
• To prevent short circuit, never put or
leave any metallic object inside the unit.
If you smell or see smoke, turn off the
power immediately and consult your
dealer.
• Insert the unit until it is firmly locked
into mounting sleeve, otherwise it may
fall out.
• Be careful not to drop or shock the unit,
it may break or crack because it contains
glass parts.
• The unit is only designed for use with
4 speakers. Do not combine speaker
output wires for use with 2 speakers. Do
not ground negative speaker leads to the
chassis ground.
• Do not open the top or bottom cover.
Modifying the unit will void the warranty
and may damage the unit or cause the
unit to malfunction or cause damage the
vehicle's electrical system.
• Parking in direct sunlight for several hours
will cause higher temperatures inside the
vehicle. Do not operate in extremely high or
low temperatures. The temperature inside the
vehicle should be between 32º F (0º C) and
100º F (37º C) before turning on your unit.
Cool down the vehicle before operating
the unit
• The faceplate is a precision piece of
equipment that contains sensitive elec-
tronic components. Do not subject it to
excessive shock.
• When replacing the fuse(s), the replace-
ment must be of the same amperage as
shown on the fuse holder.
• Do not block this unit’s vents or heater
panels. Blocking them will cause exces-
sive heat to build up inside the unit and
may result in fire.
• After completing the installation and
before operating the unit, reconnect the
battery according to the manufacturer’s
instructions. Then press the reset (RES)
button with a pointed object, such as a
ball-point pen to set the unit to its initial
status.
• Do not touch the terminals of the face-
plate or of the unit.
• If you have difficulty installing this unit in
your vehicle contact customerservice@
vr-3.com or Call 1-800-445-1797
Driving a vehicle while viewing a video on this head unit
may violate motor vehicle laws, and may result in seri-
ous injury, property damage, or death!