Sony GT550UI Car Stereo Manual

The Sony GT550UI is a high-performance car stereo featuring a 6.2-inch touchscreen display, built-in Bluetooth for hands-free calling and audio streaming, USB and AUX inputs, AM/FM radio with RDS, compatibility with various audio formats, and customizable sound settings. It supports steering wheel control integration and includes safety features like a detachable faceplate. 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 Media 8. Bluetooth Connectivity 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 6.2-inch touchscreen display, Remote Control, USB port, AUX input, Microphone input, Steering wheel control interface, Detachable faceplate.

Feature	Description
Touchscreen Display	6.2-inch capacitive touchscreen for intuitive control
Bluetooth	Hands-free calling and audio streaming from compatible devices
USB Port	For connecting USB drives and charging devices
AUX Input	3.5mm jack for external audio sources
AM/FM Radio	With RDS for station information
Steering Wheel Control	Interface for compatible vehicle controls
Detachable Faceplate	Security feature to prevent theft
Audio Formats	Supports MP3, WMA, AAC, FLAC, WAV
EQ Settings	Customizable sound profiles (Rock, Pop, Jazz, etc.)
Power Output	4 x 50W max power

Installation

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

Remove existing stereo: Use removal tools to extract old unit.
Connect wiring harness: Match colors to vehicle harness (red-ignition, yellow-battery, black-ground).
Connect antenna: Attach vehicle antenna cable to rear port.
Mount stereo: Slide unit into dashboard and secure with brackets.
Reconnect battery and test functions.

WARNING! Disconnect vehicle battery before installation to prevent electrical shock or damage. Professional installation recommended.

First-Time Setup

Power on stereo; follow on-screen prompts.

Set language: In SETTINGS menu, select preferred language (default ENGLISH).
Pair Bluetooth: Enable Bluetooth on phone, select "Sony GT550UI" from list.
Program radio stations: Use auto-scan or manual tuning to save presets.
Adjust sound settings: Configure EQ, balance, and fader to preference.
Set clock: Enter correct time in SYSTEM settings.

CAUTION! Do not operate settings while driving. Park vehicle safely before configuration.

Specifications

Display: 6.2-inch TFT LCD touchscreen.
Audio Output: 4 x 50W max (20W RMS).
Frequency Response: 20Hz - 20kHz.
Bluetooth Version: 4.2 with A2DP, HFP.
Supported Formats: MP3, WMA, AAC, FLAC, WAV.
Radio: AM/FM with 30 presets (18 FM, 12 AM).
Inputs: USB 2.0, 3.5mm AUX, Microphone.
Power Supply: 12V DC, negative ground.
Operating Temperature: -20°C to 60°C (-4°F to 140°F).

Controls and Settings

Access menus via touchscreen or physical buttons. Front Panel: POWER/VOLUME knob, SOURCE, HOME, physical shortcut buttons.

Remote: POWER, SOURCE, VOLUME UP/DOWN, MUTE, PRESET UP/DOWN, PLAY/PAUSE, NAVIGATION buttons.

Audio Settings: EQ presets (Rock, Pop, Jazz, Custom), Bass/Treble, Balance/Fader, Loudness. System Settings: Language, Clock, Display brightness, Button illumination. Bluetooth Settings: Pairing, Call history, Audio streaming quality. Radio Settings: Auto-scan, Manual tuning, Preset memory.

Connecting Devices

USB: Connect flash drive for media playback. AUX: 3.5mm cable from external device. Bluetooth: Pair compatible smartphones.

Turn on stereo and select appropriate source (USB, AUX, BT).
For USB: Insert drive; system will detect and list files.
For AUX: Connect cable to device and stereo's AUX port.
For Bluetooth: Enable pairing mode in SETTINGS > Bluetooth.

Tip: Use high-quality USB drives formatted as FAT32 for best compatibility.

Playing Media

Supports USB drives, Bluetooth audio, and AUX input.

Select source: Press SOURCE or touchscreen icon for USB, BT, or AUX.
Navigate: Use folder view or search to find tracks/albums.
Playback controls: PLAY/PAUSE, SKIP forward/backward.
Repeat/Shuffle: Enable via on-screen buttons during playback.
Radio: Tune manually or use presets; RDS displays station info.
Steering wheel controls: If configured, use vehicle buttons for volume/skip.

WARNING! Do not insert foreign objects into USB/AUX ports. Avoid using damaged USB drives.

Bluetooth Connectivity

Hands-free calling and audio streaming.

Pairing: Enable Bluetooth on phone, select "Sony GT550UI" from available devices.
Calling: Answer/end calls with on-screen buttons or steering controls.
Audio streaming: Play music from phone apps; control via stereo interface.
Multiple devices: Supports pairing with up to 5 devices; 1 active at a time.

Note: Keep paired device within 10 meters (33 feet) for stable connection.

Care & Maintenance

Use soft, dry cloth for screen and surface cleaning. Do not use chemicals or abrasive materials.

CAUTION! Detach faceplate when parking in public areas to deter theft. Store faceplate in protective case.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. ICES-003: Complies with Canadian standards. Bluetooth SIG: Qualified Bluetooth device. Copyright © Sony Corporation. For support, visit www.sony.com/auto or contact 1-800-222-7669.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Wiring/ fuse	Check connections; verify vehicle fuse for stereo circuit.
Bluetooth not pairing	Settings/ distance	Ensure pairing mode is active; move device closer; delete old pairings.
USB not recognized	Format/ capacity	Reformat drive as FAT32; use drive under 64GB.
Poor radio reception	Antenna connection	Ensure antenna cable is securely connected; check for damage.
Touchscreen unresponsive	Calibration/ debris	Clean screen; recalibrate in SYSTEM settings.

Reset: Settings > System > Factory Reset (note: erases all settings).

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