Roadmaster VRCD220S Manuale Utente

• Disconnect negative battery terminal before starting installation. Consult the vehicle’s

owner’s manual for proper instruction.

• The unit is designed for a 12 Volt DC negative ground operation system only. Before

installing the unit, make sure your vehicle is a 12 Volt DC negative ground system.

• Mark the polarity of the existing speaker wires before disconnecting the old unit.
• Be sure to connect the color coded leads according to the diagram. Incorrect connec-

tions may cause the unit to malfunction or damage the vehicle's electrical system.

• Make sure all the connections are completely correct before turning on your unit.
• When extending the ignition, memory backup or ground cable, use diameter of 0.75mm

(AWG18) or more 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 output for use with

2 speakers. Do not ground negative speaker leads to the chassis ground.

• Do not open the top or bottom cover and do not install the unit in a place where it

is exposed to direct sunlight (including faceplate), high heat, humidity, moisture, or
dust.

• The faceplate is a precision piece of equipment that contains sensitive electronic com-

ponents. Do not subject it to excessive shock.

• When replacing the fuse(s), the replacement must be of the same amperage as shown

on the fuse holder.

• Do not block vents or heater panels. Blocking them will cause heat to build up inside

and may result in fire.

• After completing the installation and before operating the unit, reconnect the battery.

Then press the (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 faceplate or of the unit.
• If you have difficulty installing this unit in your vehicle. Please contact your dealer.

Notes on Installation

Remove the
half sleeve

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