1. Introduction
The PAC LPHCH42 Integration T-Harness is designed to simplify the installation of aftermarket audio components in select 2021 non-amplified Chrysler vehicles equipped with the UConnect 5 system. This T-harness provides a plug-and-play solution, allowing for the addition of an amplifier or other audio accessories without cutting or splicing into the factory wiring. It ensures a clean and reversible installation, preserving the integrity of the vehicle's original electrical system.
2. Safety Information
- Always disconnect the vehicle's battery before beginning any electrical installation to prevent short circuits and damage.
- Ensure all connections are secure and properly insulated to avoid electrical hazards.
- Consult a professional automotive audio installer if you are unsure about any part of the installation process.
- Do not modify the T-harness or any vehicle wiring unless explicitly instructed.
- Verify vehicle compatibility before installation. This harness is specifically for 2021 non-amplified Chrysler vehicles with UConnect 5.
3. Package Contents
Verify that all items are present before proceeding with the installation:
- PAC LPHCH42 Integration T-Harness
- Impedance Converter (integrated)
- Installation Guide (this document)
4. Setup and Installation
The PAC LPHCH42 T-Harness is designed for straightforward plug-and-play installation. Follow these steps carefully:
- Prepare the Vehicle: Ensure the vehicle is turned off and the negative terminal of the battery is disconnected.
- Access the Factory Radio: Carefully remove the trim panels and fasteners necessary to gain access to the back of the factory radio unit. Refer to your vehicle's service manual for specific instructions on radio removal.
- Disconnect Factory Harness: Locate the main wiring harness connected to the back of the factory radio. Disconnect this harness.
- Connect the T-Harness: Connect the male end of the PAC LPHCH42 T-Harness to the factory radio. Connect the female end of the PAC LPHCH42 T-Harness to the vehicle's factory wiring harness that was just disconnected from the radio. The T-harness will now be inline with the factory radio wiring.
- Connect Aftermarket Components: The T-harness provides RCA outputs from the integrated impedance converter for connecting to an aftermarket amplifier. Connect your amplifier's input cables to these RCA outputs. Ensure proper left/right channel connections.
- Secure Wiring: Route and secure all wiring to prevent pinching or interference with moving parts.
- Reconnect Battery: Reconnect the vehicle's negative battery terminal.
- Test System: Turn on the vehicle and test the functionality of the factory radio and any newly installed aftermarket audio components. Adjust amplifier gain settings as needed.
Image 1: The PAC LPHCH42 Integration T-Harness, featuring two green multi-pin connectors and an integrated clear impedance converter module. This harness facilitates connecting aftermarket audio equipment to a factory radio without cutting wires.
Video 1: This video demonstrates the plug-and-play functionality of a car radio system adapter harness, similar to the LPHCH42. It shows how the adapter connects inline with the factory wiring, providing RCA outputs for additional audio components like an amplifier, without requiring wire cutting or splicing.
5. Operating Instructions
Once installed, the PAC LPHCH42 T-Harness operates passively, providing a low-level audio signal from the factory radio to your aftermarket amplifier via the RCA outputs. The integrated impedance converter ensures proper signal matching for optimal audio quality.
- Audio Signal: The harness taps into the speaker-level outputs of the factory radio and converts them to a low-level RCA signal.
- Amplifier Control: Your aftermarket amplifier will receive its audio input from the RCA connections provided by the T-harness. Power and remote turn-on for the amplifier must be wired separately according to the amplifier's instructions.
- Volume Control: The factory radio's volume control will continue to adjust the overall system volume, including the amplified signal.
6. Specifications
| Feature | Specification |
|---|---|
| Model | LPHCH42 |
| Compatibility | 2021 Non-Amplified Chrysler with UConnect 5 |
| Material | Copper wiring |
| Item Weight | 0.35 Pounds (approximately 5.6 ounces) |
| Connector Type | 12-pin |
| Package Dimensions | 8.5 x 8.25 x 1 inches |
7. Troubleshooting
- No Audio Output:
- Check all connections to ensure they are secure and fully seated.
- Verify the amplifier is powered on and receiving a remote turn-on signal.
- Confirm the amplifier's gain settings are not set too low.
- Ensure the factory radio is functioning correctly.
- Distorted Audio:
- Adjust the amplifier's gain settings to prevent clipping.
- Check for proper grounding of the amplifier.
- Ensure no wires are pinched or damaged.
- Intermittent Audio:
- Inspect all connections for looseness or corrosion.
- Verify the vehicle's battery connections are secure.
8. Maintenance
The PAC LPHCH42 T-Harness requires minimal maintenance. Periodically inspect all connections to ensure they remain secure and free from corrosion. Keep the harness free from excessive moisture and extreme temperatures to ensure long-term reliability.
9. Warranty and Support
For specific warranty information and technical support regarding your PAC LPHCH42 Integration T-Harness, please refer to the manufacturer's official website or contact their customer service department. Keep your proof of purchase for warranty claims.
