1. Safety Information
- Professional Installation Recommended: For optimal performance and safety, it is highly recommended to have this car audio system installed by a qualified professional.
- Power Source: Connect the unit only to a 12V DC power supply with a negative ground.
- Wiring: Ensure all wiring is correctly connected according to the wiring diagram to prevent damage to the unit or vehicle. Incorrect wiring can cause fire or other malfunctions.
- Avoid Distractions: Do not operate the unit in a way that distracts you from driving. Always prioritize road safety.
- Ventilation: Ensure adequate ventilation around the unit to prevent overheating.
- Speaker Polarity: Observe correct speaker polarity during installation to ensure proper sound reproduction.
2. Package Contents
Verify that all items are present in the package:
- Audiotek AT-249BT Single DIN Car Stereo Receiver
- SoundXtreme ST-603 6-Inch 3-Way Coaxial Car Speakers (Pair)
- SoundXtreme ST-694 6x9 4-Way Coaxial Car Speakers (Pair)
- Remote Control
- Wiring Harness
- Mounting Hardware (Screws, brackets, etc.)
- User Manual (This document)
3. Product Overview
3.1 Audiotek AT-249BT Single DIN Car Stereo Receiver
The Audiotek AT-249BT is a versatile single DIN digital media player featuring Bluetooth connectivity for hands-free calling and audio streaming, USB and SD card inputs for MP3/WMA playback, and an AM/FM tuner. It includes a detachable faceplate for security.
Image: Front view of the Audiotek AT-249BT car stereo receiver, showing the display, control knob, and various buttons.
3.2 SoundXtreme ST-603 6-Inch 3-Way Coaxial Car Speakers
These 6-inch 3-way coaxial speakers are designed to deliver clear and powerful audio. They feature an injection cone woofer for robust bass, and a 30mm PEI dome tweeter for crisp highs, ensuring a full-range sound experience.
Image: Front view of a SoundXtreme ST-603 6-inch speaker with a red cone and tweeter assembly.
Image: Rear view of a SoundXtreme ST-603 6-inch speaker, showing the magnet, terminals, and model label.
3.3 SoundXtreme ST-694 6x9 4-Way Coaxial Car Speakers
The SoundXtreme ST-694 speakers are 6x9 inch 4-way coaxial units, providing enhanced sound reproduction across a wider frequency range. They are built with durable materials to withstand tough conditions and offer high power handling.
Image: Front view of a SoundXtreme ST-694 6x9 inch speaker with a red cone and multiple tweeter elements.
Image: Rear view of a SoundXtreme ST-694 6x9 inch speaker, showing the magnet, terminals, and model label.
4. Setup and Installation
4.1 Audiotek AT-249BT Receiver Installation
Mounting: The AT-249BT is a single DIN unit. Ensure your vehicle's dashboard opening is compatible. Secure the unit using the provided mounting sleeve and hardware.
Wiring: Connect the wiring harness to the corresponding wires in your vehicle's wiring loom. Typical connections include:
- Yellow: Constant 12V (Battery)
- Red: Switched 12V (Accessory/Ignition)
- Black: Ground
- Blue: Remote Turn-On (for amplifier or power antenna)
- Speaker Wires: Connect to the positive (+) and negative (-) terminals of your speakers. Ensure correct polarity.
Note: Refer to your vehicle's specific wiring diagram for accurate connections. If unsure, consult a professional installer.
4.2 SoundXtreme Speaker Installation
Mounting:
- ST-603 (6-inch): These speakers have a mounting depth of approximately 2 3/4 inches (70 mm) and a diameter of 6 inches. Ensure sufficient clearance in your desired mounting location (e.g., door panels, rear deck).
- ST-694 (6x9 inch): These speakers have a bottom mount depth of approximately 3 3/16 inches (81 mm) and a mounting hole diameter of 5-5/8 x 8-7/16 inches (143x215 mm). Verify space availability before installation.
Wiring: Connect the speaker wires from the receiver to the spade terminals on the speakers. The larger terminal is typically positive (+), and the smaller is negative (-). Maintain consistent polarity for all speakers.
5. Operating Instructions
5.1 Receiver Controls
Familiarize yourself with the front panel buttons and the remote control for easy operation.
Image: Remote control for the Audiotek AT-249BT receiver, showing various function buttons.
- PWR/MOD: Press to turn on/off. Short press to cycle through modes (FM, USB, SD, Bluetooth, AUX).
- VOL Knob: Rotate to adjust volume. Press to access audio settings (Bass, Treble, Balance, Fader, EQ).
- BAND/AS: In FM mode, press to select radio band (FM1, FM2, FM3). Press and hold for Auto Store.
- MUTE: Mutes or unmutes audio output.
- EQ: Cycles through preset equalizer settings (Pop, Rock, Classic, Flat).
- DISP: Changes display information (e.g., clock, track info).
- Tuning/Track Buttons (◀◀ / ▶▶): Short press to change radio stations or tracks. Press and hold for fast forward/rewind or auto-seek.
5.2 Bluetooth Operation
- Pairing: Turn on the receiver. On your mobile device, enable Bluetooth and search for available devices. Select "AT-249BT" from the list. Enter PIN "0000" if prompted.
- Connecting: Once paired, the receiver will automatically connect to your device when in range and Bluetooth mode is selected.
- Audio Streaming: Play music on your paired device, and the audio will stream through the car speakers. Use the receiver's controls or your device to manage playback.
- Hands-Free Calling: When a call comes in, the receiver will display the caller ID. Press the ◀◀ (Answer) button to accept or ▶▶ (Reject) button to decline.
5.3 USB/SD/MP3 Playback
- Insert a USB drive into the USB port or an SD card into the SD card slot.
- The unit will automatically switch to USB/SD mode and begin playing MP3/WMA files.
- Use the tuning/track buttons to skip tracks. Use the number buttons (1-6) for direct track selection or folder navigation if supported.
5.4 FM/AM Tuner Operation
- Press the MOD button to select FM or AM mode.
- Auto Seek: Press and hold the tuning buttons (◀◀ / ▶▶) to automatically search for the next strong station.
- Manual Tune: Short press the tuning buttons to manually adjust the frequency step by step.
- Store Presets: Tune to a desired station, then press and hold one of the preset buttons (1-6) to save it.
- Recall Presets: Short press a preset button (1-6) to recall a saved station.
6. Maintenance
- Cleaning the Unit: Use a soft, dry cloth to clean the front panel. For stubborn stains, dampen the cloth with water only. Avoid using harsh chemicals or abrasive cleaners.
- Detachable Faceplate: When detaching the faceplate, handle it carefully to avoid damage to the connectors. Store it in the provided case to protect it from scratches and dust.
- Speaker Care: Keep speakers free from dust and debris. Avoid exposing them to excessive moisture or direct sunlight for prolonged periods.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Incorrect wiring; Blown fuse; Vehicle battery issue | Check power and ground connections; Replace fuse; Check vehicle battery. |
| No sound | Volume too low; Mute activated; Incorrect speaker wiring; Amplifier issue (if applicable) | Increase volume; Deactivate mute; Check speaker connections and polarity; Verify amplifier power. |
| Bluetooth not connecting | Bluetooth not enabled on device; Device not in pairing mode; Interference | Ensure Bluetooth is on and discoverable; Re-pair device; Move closer to unit. |
| Radio static/Poor reception | Antenna not connected; Weak signal; Interference | Check antenna connection; Try a different location; Avoid areas with strong electrical interference. |
| USB/SD not playing | Unsupported file format; Corrupt media; Incorrect mode selected | Ensure files are MP3/WMA; Try different USB/SD card; Select USB/SD mode. |
8. Specifications
8.1 Audiotek AT-249BT Receiver Specifications
| Feature | Specification |
|---|---|
| Power Output (Peak) | 50 watts x 4 channels |
| Power Output (RMS) | 25 watts x 4 channels |
| Connectivity | Bluetooth, USB |
| Compatible Devices | Smartphone, Speaker (via Bluetooth) |
| Audio Output Mode | Stereo |
| Media Playback | MP3, WMA (via USB/SD) |
| Tuner | AM/FM with 18FM/12AM presets |
| Display | MP3 ID3 Tag Display (Title/Artist/Album) |
| Protection | Electronic Shock Protection (ESP) |
| Adjustments | Balance/Fader/Treble |
8.2 SoundXtreme ST-603 6-Inch 3-Way Speaker Specifications
| Feature | Specification |
|---|---|
| Speaker Size | 6 inches |
| Speaker Type | 3-Way Coaxial |
| Peak Power | 350 Watts |
| Impedance | 4 ohms |
| Sensitivity | 89 dB |
| Frequency Response | 65 Hz - 20 kHz |
| Woofer | Injection Cone |
| Midrange and Tweeter | 30 mm PEI Dome Tweeter |
| Magnet | 10 Oz |
| Voice Coil | 25 mm |
| Mounting Depth | 2 3/4 inches (70 mm) |
8.3 SoundXtreme ST-694 6x9 4-Way Speaker Specifications
| Feature | Specification |
|---|---|
| Speaker Design | 4-Way Coaxial |
| Woofer Size | 6x9 inches (160x230 mm) |
| Mid Size | 2 inches (50 mm) |
| Tweeter Size | 1/2 inch (13 mm) |
| DC Resistance | 4 ohms |
| Peak Power (per speaker) | 260 Watts |
| Peak Power (per pair) | 520 Watts |
| Sensitivity | 92 dB @ 1W, 1m |
| Effective Frequency Range | 30 Hz - 20 kHz |
| Mounting Hole Diameter | 5-5/8 x 8-7/16 inches (143x215 mm) |
| Top Mount Depth | 7/16 inch (12 mm) |
| Bottom Mount Depth | 3 3/16 inches (81 mm) |
| Tweeter Protrusion | 1/16 inch (1 mm) |
| Grilles | Yes |
9. Warranty Information
Please refer to the product packaging or the manufacturer's official website for detailed warranty terms and conditions. Keep your proof of purchase for any warranty claims.
10. Customer Support
For technical assistance, troubleshooting beyond this manual, or service inquiries, please contact Audiotek customer support. Contact information can typically be found on the product packaging or the official Audiotek website.