Introduction
This manual provides detailed instructions for the installation and use of the Scosche SU01B Power/4 Speaker Connector. This product is designed to facilitate the connection of an aftermarket car stereo to the factory wiring harness in specific 1985-1992 Subaru vehicle models. It ensures a direct connection without the need for cutting or splicing factory wires, simplifying the installation process.
Product Features
- Connects an aftermarket stereo to the factory radio harnesses.
- Designed for direct connection to the factory harness, eliminating wire cutting.
- Manufactured with factory-quality wire and connectors for reliable performance.
- Features standard color-coded wires for easier and accurate installation.
- Important Note: Not compatible with factory amplified systems.
Setup and Installation
Before beginning installation, ensure your vehicle's battery is disconnected to prevent electrical shorts. Refer to your aftermarket stereo's instruction manual for specific wiring diagrams and safety precautions.
This image displays the Scosche SU01B wiring harness, featuring a white multi-pin connector on one end and individual color-coded wires stripped at the other end, along with a separate yellow wire with a smaller connector. This harness is designed to connect an aftermarket stereo to a Subaru's factory wiring.
- Identify Vehicle Wiring: Carefully remove your factory radio to access the vehicle's wiring harness. Consult your vehicle's service manual if you are unsure about the factory wiring configuration.
- Match Wires: The Scosche SU01B harness features color-coded wires. Match these wires to the corresponding wires on your aftermarket stereo's wiring harness. Standard color codes are typically:
- Yellow: Constant 12V (Memory)
- Red: Switched 12V (Accessory)
- Black: Ground
- Blue: Power Antenna/Remote Turn-On
- White/White-Black: Front Left Speaker (+/-)
- Gray/Gray-Black: Front Right Speaker (+/-)
- Green/Green-Black: Rear Left Speaker (+/-)
- Purple/Purple-Black: Rear Right Speaker (+/-)
- Secure Connections: Use appropriate wiring connectors (crimp caps, solder, or heat shrink connectors) to securely join the wires from the SU01B harness to your aftermarket stereo's harness. Ensure all connections are insulated to prevent short circuits.
- Connect to Factory Harness: Once all connections between the SU01B and the aftermarket stereo are made, plug the white multi-pin connector of the SU01B into the vehicle's factory wiring harness.
- Test System: Reconnect the vehicle's battery. Turn on the ignition and test the aftermarket stereo's functionality, including power, speaker output, and any other features.
- Final Assembly: If the system functions correctly, carefully reinstall the aftermarket stereo into the dashboard, ensuring no wires are pinched or damaged.
Caution: This harness is not designed for vehicles with factory amplified sound systems. Attempting to use it with an amplified system may result in damage to the stereo or vehicle's audio components.
Operating Instructions
Once the Scosche SU01B connector is correctly installed, the operation of your car audio system will be managed entirely by your aftermarket stereo unit. Refer to your aftermarket stereo's user manual for detailed operating instructions, including radio tuning, media playback, and sound adjustments.
Maintenance
The Scosche SU01B Power/4 Speaker Connector is a passive component and requires no routine maintenance. It contains no user-serviceable parts. Ensure all connections remain secure and free from moisture or excessive vibration.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to aftermarket stereo | Incorrect 12V constant or switched connection; Blown fuse. | Verify yellow (constant) and red (switched) wire connections. Check vehicle and stereo fuses. |
| No sound from speakers | Incorrect speaker wire connections; Stereo settings. | Ensure all speaker wires (white, gray, green, purple) are correctly matched and connected. Check stereo's balance/fader settings. Confirm vehicle does not have a factory amplified system. |
| Intermittent power or sound | Loose wire connections. | Inspect all wire connections for tightness and proper insulation. |
| Radio does not retain memory/settings | Incorrect 12V constant (yellow) wire connection. | Ensure the yellow wire from the SU01B is correctly connected to the constant 12V power source. |
If troubleshooting steps do not resolve the issue, please contact Scosche Technical Support.
Specifications
| Specification | Detail |
|---|---|
| Model Number | SU01B |
| Compatibility | 1985-1992 Subaru vehicles (non-amplified systems) |
| Material | Plastic |
| Item Dimensions (L x W x H) | 0.62 x 4.25 x 8 inches |
| Item Weight | 2.88 ounces |
| UPC | 033991192010, 079532109451 |
Warranty and Support
The Scosche SU01B Power/4 Speaker Connector comes with a Lifetime Limited Warranty. Scosche is committed to producing high-quality products and stands behind them with comprehensive support.
For technical assistance, product inquiries, or warranty claims, please contact Scosche Technical Support. Our knowledgeable team is available to answer any product questions you may have for as long as you own the product.
Contact Information:
- Website: www.scosche.com
- Customer Service: Refer to the Scosche website for the most current contact methods (phone, email, chat).
