Sony CDX-GT55IP Car Stereo Manual

The Sony CDX-GT55IP is an in-dash CD receiver with a built-in iPod/iPhone direct control interface, AM/FM tuner, 52W x 4 high power output, detachable faceplate security, and customizable audio settings. It features a 1-line LCD display, front auxiliary input, and compatibility with various audio formats. 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. Security Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with CD slot, Detachable Faceplate, Remote Control, Wiring Harness, iPod/iPhone connection cable, Mounting Sleeve.

Feature	Description
CD Player	Plays CD, CD-R, CD-RW, MP3, WMA
iPod/iPhone Direct Control	Full control and charging via dedicated port
AM/FM Tuner	30 station presets (18 FM, 12 AM)
Power Output	52W x 4 (max), 17W x 4 (RMS)
Detachable Faceplate	Security feature to prevent theft
Front AUX Input	3.5mm jack for external audio devices
LCD Display	1-line with orange illumination
Audio Controls	Bass, Treble, Loudness, Fader, Balance
Remote Control	Included for convenient operation
Preamp Outputs	Front, Rear, Subwoofer (2V)

Installation

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

Remove existing stereo: Use removal tools to extract old unit.
Connect wiring harness: Match colors to vehicle harness (use crimp connectors or solder).
Connect antenna: Plug vehicle antenna cable into unit.
Mount sleeve: Insert into dashboard opening and secure.
Slide unit into sleeve until it clicks.
Reconnect vehicle battery and test functions.

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

First-Time Setup

Power on unit; follow initial configuration.

Set clock: Press and hold DISP until clock blinks, use TUNE/SEEK to adjust.
Program radio presets: Tune to desired station, press and hold a number button (1-6).
Adjust audio settings: Use SOUND button to set Bass, Treble, Fader, Balance.
Connect iPod/iPhone: Use supplied cable for direct control and charging.

CAUTION! Ensure faceplate is securely attached during operation. Do not force CD or connections.

Specifications

Power Supply: 12V DC, negative ground.
Output Power: 52W x 4 max (17W x 4 RMS at 4 ohms).
Preamp Outputs: 3 pairs (Front, Rear, Sub) 2V.
CD Playback: CD, CD-R, CD-RW, MP3, WMA.
Tuner: FM/AM with 30 presets.
Display: 1-line LCD with orange illumination.
Audio Controls: Bass, Treble, Loudness, Fader, Balance.
Connections: iPod direct port, Front AUX, RCA pre-outs.
Dimensions: DIN size (178mm x 50mm x 159mm).

Controls and Settings

Front Panel: POWER/VOLUME knob, SRC (Source), SOUND, DISP, Folder/Track buttons, EJECT, AUX jack.

Remote: POWER, Volume, Mute, SRC, Preset buttons, Play/Pause, Track navigation.

Audio Settings: Bass (-10 to +10), Treble (-10 to +10), Loudness (On/Off), Fader (F7 to R7), Balance (L7 to R7). Tuner: Manual/Seek tuning, Preset memory. Display: Clock setting, Dimmer. iPod Mode: Direct control of playback, menus, and charging.

Connecting Devices

iPod/iPhone: Use supplied cable to dedicated port. AUX: 3.5mm cable to front jack. External Amplifier: Use RCA preamp outputs.

Turn off unit before connecting devices.
For iPod, connect cable to port and device; unit will switch to iPod mode.
For AUX, plug into front jack and press SRC to select AUX.
For amplifiers, connect RCA cables from pre-outs to amp inputs.

Tip: Use genuine Sony cables for optimal performance and compatibility.

Playing Media

Supports CD, MP3/WMA CD, iPod/iPhone, AUX input.

Insert CD: Press EJECT, load disc label-side up.
Play: Press SRC to select CD; playback starts automatically.
Skip tracks: Press >>| or |<< for next/previous.
MP3 navigation: Use Folder buttons to navigate directories.
iPod control: Connect iPod; use unit buttons to browse and play.
AUX playback: Connect device, select AUX source.
Random/Repeat: Press RPT during CD play for modes.
Eject: Press EJECT to remove disc.

WARNING! Do not use damaged or irregular CDs. Do not disconnect iPod during data transfer.

Security Features

Detachable Faceplate: Remove for theft prevention (press release button and slide off). Security Code: Optional code can be set via settings menu to disable unit if stolen.

Care & Maintenance

Keep unit clean and dry. Use soft, dry cloth for cleaning; do not use solvents.

CAUTION! Do not expose to extreme temperatures or moisture. Store faceplate in protective case when detached.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Battery/connections	Check fuse; ensure wiring harness is properly connected; verify battery voltage.
No sound	Settings/speakers	Check volume, mute, fader/balance settings; verify speaker connections.
CD not playing	Disc/unit	Ensure disc is clean and compatible; eject and reload; check for condensation.
iPod not recognized	Cable/device	Use supplied cable; ensure iPod is compatible and unlocked; restart device.
Poor radio reception	Antenna	Ensure antenna is fully extended and connected; check for obstructions.

Reset: Disconnect battery for 1 minute to reset unit memory.

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