Sony GT55UIW Car Stereo Manual

The Sony GT55UIW is a high-performance car stereo system featuring a 7-inch touchscreen display, Bluetooth connectivity for hands-free calling and audio streaming, AM/FM radio with 18 presets, USB and auxiliary inputs, compatibility with various audio formats, built-in amplifier, customizable EQ settings, steering wheel control compatibility, and rearview camera input. Designed for 12V DC vehicle electrical systems. 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 Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: 7-inch capacitive touchscreen, main unit, wiring harness, remote control, microphone, user manual.

FeatureDescription
Touchscreen Display7-inch capacitive touchscreen for intuitive control
BluetoothHands-free calling and audio streaming
AM/FM Radio18 preset stations (6 AM, 12 FM)
USB PortFor connecting flash drives and charging devices
Auxiliary Input3.5mm jack for external audio sources
Rearview Camera InputRCA input for connecting backup camera
Steering Wheel ControlCompatible with most vehicle steering wheel controls
EQ SettingsCustomizable equalizer with multiple presets
Power Output4 x 50W MOSFET amplifier
Power Source12V DC vehicle electrical system

Installation

Unpack and inspect all components. Ensure vehicle is turned off before installation.

  1. Disconnect vehicle battery: Remove negative terminal to prevent electrical shorts.
  2. Remove existing stereo: Use appropriate removal tools for your vehicle.
  3. Connect wiring harness: Match colors to vehicle wiring (refer to vehicle manual).
  4. Connect antenna: Plug vehicle antenna cable into radio antenna input.
  5. Mount stereo: Secure unit in dashboard using supplied brackets.
  6. Reconnect battery: Reattach negative terminal after installation.

WARNING! Professional installation recommended. Incorrect wiring may damage vehicle electrical system.

First-Time Setup

Turn on vehicle ignition to power stereo; follow initial setup prompts.

  1. Language selection: Choose preferred language from setup menu.
  2. Bluetooth pairing: Enable Bluetooth on phone and select "GT55UIW" from available devices.
  3. Radio presets: Scan and save favorite AM/FM stations.
  4. EQ adjustment: Select or customize equalizer settings for optimal sound.
  5. Steering wheel control: Program compatible steering wheel controls in settings menu.

CAUTION! Do not operate touchscreen while driving. Park vehicle for setup adjustments.

Specifications

Controls and Settings

Access settings via touchscreen menu or physical buttons. Front Panel: POWER, VOLUME knob, SOURCE, HOME, physical navigation buttons.

Touchscreen Interface: Home screen with app icons, swipe gestures, customizable wallpaper.

Audio Settings: EQ presets (ROCK, POP, JAZZ, CLASSICAL, FLAT), bass/treble adjustment, fader/balance, loudness. Bluetooth Settings: Pair devices, call history, contact sync. Display Settings: Brightness, contrast, wallpaper, screen timeout. System Settings: Language, time/date, steering wheel control programming, factory reset.

Connecting Devices

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

  1. Ensure stereo is in ACC or ON mode.
  2. Connect USB drive to USB port (supports up to 128GB).
  3. For AUX input, connect 3.5mm cable from device headphone jack to AUX input.
  4. Select corresponding source (USB, AUX, BT AUDIO) on stereo.

Tip: Format USB drive as FAT32 for best compatibility. Keep cables organized to avoid interference.

Playing Media

Supports audio files from USB, Bluetooth, and AUX inputs.

  1. USB playback: Insert USB drive, select USB source, navigate folders using touchscreen.
  2. Bluetooth audio: Pair device, select BT AUDIO source, control playback from stereo or device.
  3. AUX playback: Connect device, select AUX source, control volume from stereo.
  4. Playback controls: Play/pause, skip forward/backward, repeat, shuffle.
  5. File navigation: Browse by folder, artist, album, genre, or all tracks.
  6. Radio: Manual tuning or auto-scan, save up to 18 presets.

WARNING! Do not remove USB drive during playback. Eject properly from menu first.

Bluetooth Features

Hands-free calling: Answer/end calls with touchscreen or steering wheel controls. Audio streaming: Stream music from compatible devices. Phonebook access: Sync contacts for voice dialing.

  1. Pairing: Enable Bluetooth on phone, search for "GT55UIW", enter PIN 0000 if prompted.
  2. Call management: Access call history, redial, voice dial with compatible phones.
  3. Audio streaming: Automatic reconnection when device is in range.

Note: Bluetooth performance may vary by device and environmental conditions.

Care & Maintenance

Clean touchscreen with microfiber cloth only. Avoid abrasive cleaners or liquids.

  1. Turn off stereo before cleaning.
  2. Use dry microfiber cloth for screen and surfaces.
  3. For stubborn marks, lightly dampen cloth with water only.
  4. Keep vents clear of dust and debris for proper ventilation.

CAUTION! Never use alcohol, ammonia, or abrasive cleaners on touchscreen. Avoid extreme temperatures.

Regulatory Information

FCC ID: AK8GT55UIW. This device complies with Part 15 of FCC Rules. Operation is subject to conditions: (1) device may not cause harmful interference, (2) device must accept any interference received. IC: 511B-GT55UIW. Contains FCC ID: AK8GT55UIW. This Class B digital apparatus complies with Canadian ICES-003. Sony and the Sony logo are trademarks of Sony Corporation. For support, visit www.sony.com/auto or contact 1-800-222-7669.

Troubleshooting

SymptomPossible CauseCorrective Action
No powerWiring/ignitionCheck fuse, wiring connections, ensure ignition is in ACC or ON position.
Bluetooth not connectingPairing/rangeDelete old pairing, restart both devices, ensure within range (10m).
Touchscreen unresponsiveCalibration/temperaturePerform touch calibration in settings, avoid extreme cold.
Poor radio receptionAntenna connectionEnsure antenna cable securely connected, check for damaged antenna.
USB not recognizedFormat/capacityReformat USB as FAT32, try smaller capacity drive (≤128GB).
No sound from speakersSettings/wiringCheck fader/balance settings, verify speaker wiring connections.

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

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

Sony GT55UIW Car Stereo Manual © - All Rights Reserved 2025