Roadmaster VR3 VR500CS-BT - Manual (Page 9)

Wiring Connections
Make sure you have good chassis ground. A good ground connection will eliminate
most electrical noise problems. A good chassis ground requires a tight connection to
the vehicle’s metal chassis. The area around the ground connection should be clean,
bare metal without rust, paint, plastic, dust, or dirt for a good electrical connection.
ANTENNA SOCKET
Connect to Dimmer Switch
Connect to Power Antenna or
Remote Control for Amplifier
Connect to Battery or 12 Volt
Positive That is Always On
Connect to Ignition Switch
FUSE
FUSE
Connect to Ground Terminal or the
Unpainted Metal Part of Chassis
RCA Line Out
Red = Right
White = Left
Hole For Mounting Bracket
Sub W. Out
Red = Right
White = Left
Follow the above wiring diagram to install
the head unit with new or existing speakers.
• This unit is designed for use with four (4)
speakers with an impedance between 4
Ohms to 8 Ohms.
• An impedance load of less than 4 Ohms
could damage the unit.
• Never bridge or combine the speaker wire
outputs. When not using four speakers, use
electrical tape to tape the ends of the unused
speaker outputs to prevent a short circuit.
• Never ground the negative speaker termi-
nals to chassis ground.
Speaker Wiring Notes
8