USB AUX MP3 Player Radio Car Digital Music CD Changer Aux Adapter User Manual

1. Product Overview

The Yomikoo WT-USB adapter is designed to integrate modern audio connectivity into compatible Toyota and Lexus vehicles equipped with specific factory radios. This device allows you to play digital music files from a USB flash drive, SD card, or external audio devices via a 3.5mm auxiliary input, utilizing your car's existing CD changer port.

It provides a convenient solution for enjoying your digital music collection without replacing your original car stereo.

Image: The Yomikoo WT-USB adapter, showing its connection to a smartphone via a 3.5mm AUX cable and a USB flash drive. The adapter features a main unit with a cable leading to the car's head unit connector.

2. Compatibility

This adapter is compatible with a wide range of Toyota and Lexus vehicles. Please verify your car model, year, and radio type against the lists below to ensure compatibility.

2.1 Compatible Vehicles (Toyota & Lexus 5+7 Pin Radios)

• Toyota: 4Runner (1998-2002), Altis (1998-2004), Avalon (1998-2004), Avensis (1998-2002), Brevis (1998-2004), Camry (1998-2004), Carina E (1992-1997), Celica (1998-2002), Coaster (1993+), Corolla (1998-2002), Corolla Verso (2004+), Cressida (1989-1992), Echo (1999-2005), Fortuner (1989+), Highlander (1998-2003), Hi-Lux (1989+), Kluger (2001+), Land Cruiser (1998-2002), Lite Ace (1993+), Matrix (1998-2004), MR2 (1998-2002), Optimo (1993+), Paseo (1992-1999), Pick up (1986-1995), Picnic (1990+), Platz (1999-2005), Previa (1990+), RAV4 (1994-2003), Sequoia (1998-2002), Sienna (1998-2003), Solara (1998-2003), Sportsvan (1996-2004), Starlet (1993+), Supra (1986-1998), Tacoma (1998-2004), Tercel (1987-1998), Tundra (1998-2002), Van (1987-1990), Vios (1999-2005), Vitz (1993+), Yaris (1999-2005), Yaris Verso (1999-2005).
• Lexus: IS 200 (1999-2005), IS 250 (1999-2005), IS 300 (1999-2005), IS 350 (1999-2005), GS 300 (2001-2003), GS 400 (2001-2003), GS 430 (2001-2003), GS 450H (2001-2003), GX 470 (2003).

Image: A detailed compatibility table listing various Toyota and Lexus models, their compatible years, and corresponding radio models. This image also includes important notes regarding navigation systems and the need for a splitter cable.

2.2 Incompatible Systems

This adapter is NOT compatible with the following:

• Factory Navigation Systems or DVD radios.
• Integrated Satellite Radio (you may need to disconnect it for installation).
• Specific radio models: Aygo, 58805 (2003 RAV4), 56010 (Ipsum), 56018, 58813, T18303, B9010, B9004 (2007 RAV4), RAV4 with factory navigation, TNS Travel 700, W58816, W13807/W13081/W13086 (Auris), W58824, W58832, 36458, AD1812 (Delphi on 2010-2011 Tundra/Sequoia), AD6900 (Delphi on 2000-2004 Avalon), and other AD-xxx radios.

If your car's CD changer port is already occupied by another device (other than a CD Changer), a splitter/Y cable may be required (not included).

Image: Visual examples of car radio head units that are incompatible with the adapter, typically those with built-in navigation or DVD screens, marked with red 'X' symbols.

3. Package Contents

• Yomikoo WT-USB Adapter Unit
• 3.5mm AUX Cable
• USB Extension Cable (integrated)

Note: USB flash drive and smartphone shown in product images are for demonstration purposes only and are not included.

4. Setup and Installation

Installation typically involves accessing the rear of your car's factory radio to connect the adapter to the CD changer port. Professional installation is recommended if you are unfamiliar with car audio system disassembly.

4.1 Before Installation

1. Ensure your vehicle's ignition is off and the battery is disconnected to prevent electrical damage.
2. Locate the CD changer port on the back of your car's radio. It is crucial to verify this port matches the adapter's connector before proceeding.

Image: A close-up view of the 5+7 pin connector on the adapter, which plugs into the CD changer port of compatible Toyota and Lexus factory radios.

4.2 Installation Steps (General Guide)

1. Carefully remove the trim panels and screws securing your car's radio head unit. Refer to your vehicle's specific service manual for detailed instructions on radio removal.
2. Once the radio is accessible, locate the CD changer port on its rear.
3. Connect the adapter's multi-pin connector firmly into the CD changer port. Ensure a secure connection.
4. Route the adapter's cables (USB and AUX) to a desired accessible location within your vehicle (e.g., glove compartment, center console).
5. Secure the main adapter unit to prevent rattling or damage.
6. Reconnect the car battery and test the adapter before fully reassembling the dashboard.
7. Reinstall the radio and trim panels.

5. Operating Instructions

5.1 USB Playback

• USB Drive Format: The USB flash drive must be formatted to FAT32.
• Folder Structure: Create folders named CD01, CD02, CD03, etc., on your USB drive. Place your MP3 or WAV audio files within these folders. The adapter will read files in the order they are copied to the disk.
• Activating USB Mode: Press the "CD" button on your car's radio twice to switch to the adapter's mode.
• Navigation: Use the radio's track forward/backward buttons to navigate between songs. Use the disc up/down buttons to switch between CD folders (CD01, CD02, etc.).

Image: An instructional diagram illustrating the required folder structure (CD1, CD2, CD3, CD4) and song naming convention (e.g., 001song name.mp3) for USB flash drives to be recognized by the adapter.

5.2 Auxiliary (AUX) Input

• Connect your external audio device (e.g., smartphone, MP3 player) to the 3.5mm AUX input jack on the adapter.
• Activating AUX Mode: If both USB and AUX are connected, press the "RPT" button on your radio to switch between USB and AUX inputs. If only AUX is connected, pressing the "CD" button twice should activate it.
• Note: The AUX input only works when a USB flash drive is NOT plugged in, or if you explicitly switch to AUX mode using the "RPT" button when both are present.

Image: A close-up view of the USB-A port and the 3.5mm auxiliary input jack on the adapter, where external devices can be connected.

5.3 USB Charging Functionality

• The USB port can provide a slow charge to compatible devices.
• Important: Using the USB port for charging while listening to FM or AM radio may introduce static or interference on those radio channels. Unplug your device from the USB port if you experience this issue.

6. Troubleshooting

7. Specifications

8. Maintenance

The Yomikoo WT-USB adapter requires minimal maintenance. Keep the unit and its connectors clean and free from dust or debris. Avoid exposing the unit to extreme temperatures or moisture. Do not attempt to disassemble the unit, as this will void any potential warranty and may cause damage.

9. Warranty and Support

For warranty information or technical support, please contact Yomikoo directly through their official channels or the retailer from whom you purchased the product. Retain your proof of purchase for any warranty claims.

For further assistance, you may refer to the product listing on Amazon or contact the seller "Yomikoo" directly.