Sony WRU-806B Car Stereo Manual

The Sony WRU-806B is a single-DIN car stereo receiver featuring AM/FM radio with 30 station presets, CD playback (including CD-R/RW), front auxiliary input, detachable faceplate security, 4 x 50W maximum power output, adjustable bass/treble, loudness control, and compatibility with steering wheel remote controls. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Playing CD Media 8. Security Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with CD slot, Detachable Faceplate, Remote Control (optional), Wiring Harness, Antenna Connector, Front AUX Input.

Feature	Description
AM/FM Tuner	30 preset stations (18 FM, 12 AM)
CD Player	Plays audio CDs, CD-R, CD-RW
Front AUX Input	3.5mm jack for external audio devices
Detachable Faceplate	Security feature to prevent theft
Power Output	4 x 50W max (MOSFET power amplifier)
Audio Controls	Bass, Treble, Loudness, Fader/Balance
Power / Volume Knob	Turns unit on/off and adjusts volume
SOURCE Button	Cycles between CD, Tuner, AUX modes
MUTE Button	Instantly mutes audio
EJECT Button	Ejects CD from slot

Installation

Unpack and inspect contents. Ensure vehicle is off and battery disconnected.

Connect wiring harness: Match wire colors (Red to ignition, Yellow to constant 12V, Black to ground).
Connect speakers: Ensure correct polarity (positive/negative).
Connect antenna plug to rear antenna input.
Slide unit into dashboard opening and secure with mounting sleeve.
Reconnect vehicle battery and test unit.

WARNING! Disconnect negative battery terminal before installation to prevent short circuits. Ensure all connections are secure and insulated.

First-Time Setup

Reconnect battery, turn on ignition, and power on the stereo.

Set clock: Press and hold CLOCK button, use tuning knob to adjust time.
Program radio stations: Tune to desired station, press and hold a preset button (1-6) for 2 seconds.
Adjust audio settings: Use BASS, TREBLE, and FADER/BALANCE controls for optimal sound.
Detach faceplate: Press RELEASE button and store securely when leaving vehicle.

CAUTION! Do not operate the unit while driving. Park the vehicle for initial setup.

Specifications

Chassis Size: Single DIN (178mm x 50mm).
Tuner: AM/FM with 30 presets.
CD Playback: Audio CD, CD-R, CD-RW.
Audio Output: 4 channels, 50W max per channel.
Frequency Response: 20Hz - 20kHz.
Signal-to-Noise Ratio: >90dB (CD).
Inputs: Front 3.5mm AUX.
Power Supply: 12V DC, negative ground.
Operating Temp: -20°C to +60°C.

Controls and Settings

Front Panel Controls: POWER/VOLUME knob, SOURCE, BAND, MUTE, EJECT, Bass/Treble buttons, Fader/Balance buttons.

Remote Control (Optional): POWER, VOLUME, SOURCE, PRESET, MUTE, TRACK UP/DOWN.

Audio Settings: BASS (-10 to +10), TREBLE (-10 to +10), LOUDNESS (On/Off), FADER (Front/Rear), BALANCE (Left/Right). Tuner Settings: Manual/Seek tuning, Local/DX reception, Preset memory. CD Settings: Random/Repeat play, Scan, Intro play.

Connecting Devices

AUX Input: Front 3.5mm jack for MP3 players, smartphones. Antenna: Standard car antenna plug. Speakers: Up to four speakers (4-8 ohms).

Ensure unit and vehicle are off before connecting.
Plug 3.5mm cable from device into front AUX jack.
Select AUX mode by pressing SOURCE button.
Start playback on external device and adjust volume.

Tip: Use a high-quality shielded cable for AUX connection to minimize noise.

Playing CD Media

Supports standard audio CDs, CD-R, CD-RW (MP3 playback not supported).

Insert disc: Press EJECT to open slot, insert CD label-side up.
Play: Press SOURCE to select CD mode; playback starts automatically.
Skip tracks: Press TRACK UP/DOWN buttons.
Fast forward/rewind: Press and hold TRACK UP/DOWN.
Repeat/Random: Press RPT or RDM button during playback.
Eject: Press EJECT button; remove disc when slot opens.

WARNING! Do not insert damaged, warped, or non-standard discs. Do not use in extreme temperatures.

Security Features

Detachable Faceplate: Press RELEASE button to remove; store safely. Anti-Theft LED: Blinking red LED indicates unit is secured. Code Security (if equipped): Enter 4-digit code if power is disconnected.

Care & Cleaning

Disconnect power before cleaning. Use soft, dry cloth for faceplate and unit. For CD lens, use approved cleaning disc only.

CAUTION! Do not use solvents, aerosols, or abrasive cleaners. Keep discs clean and free of scratches.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. This device complies with Industry Canada licence-exempt RSS standard(s). Copyright © Sony Corporation. For support, visit www.sony.com/electronics/support or contact 1-800-222-7669.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Blown fuse/wiring	Check vehicle fuse (10-15A); verify wiring connections (Red/Yellow/Black).
No sound from speakers	Speaker wiring/balance	Check speaker connections; adjust FADER/BALANCE settings.
CD won't play	Disc type/damage	Ensure disc is audio CD (not MP3/data); clean disc; check for scratches.
Poor radio reception	Antenna connection	Ensure antenna plug is fully inserted; extend antenna fully.
Unit asks for code	Power loss	Enter 4-digit security code (default 0000 or see card).

Reset: Disconnect power for 5 minutes to reset microprocessor.

Service: 1-800-222-7669; www.sony.com/electronics/support