5
Before You Install
Automotive audio equipment installations can be challenging at times, even to the most
experienced of installation technicians. If you are not confident working with electrical
wiring, removing and reinstalling interior panels, carpeting, dashboards or other compo-
nents of your vehicle, please call our toll-free help line 1-800-445-1797 and our in-house
technical service team will answer your installation questions. Contact the vehicle's
manufacturer for vehicle specific instructions, or consider having the VRVD400IV profes
-
sionally installed.
• Before starting the installation, disconnect the negative battery cable from the
battery’s negative terminal.
• Before final installation of the unit, connect the wiring temporarily, making sure
the unit and the system work properly.
• Use only the parts included with unit to ensure proper installation. The use of un-
authorized parts can cause malfunctions.
• Consult with your vehicle’s nearest dealership if installation requires the drilling
of holes or other modifications of the vehicle.
• Install the unit where it does not get in the driver’s way and cannot injure the pas-
senger if there is a sudden stop, like an emergency stop.
