LPH Harness Instruction Guide
Important Notes
All LPH harnesses are designed to work on OEM Non-Amplified systems.
All LPH harnesses are designed to be modular and used in various applications. These applications include:
- Adding Multi-Channel Amplifiers Front: LPH-SPK(A) / (C)
- Adding Multi-Channel Amplifiers Rear: LPH-SPK(B) / (D)
- Adding Multi-Channel Amplifiers Front / Rear: LPH-SPK(A) / (B) / (C) / (D)
- Adding Mono Amplifier Standalone Subwoofer: LPH-SPK(E)
- Providing Power/Ground/ACC: LPH-SPK(F)
- Providing speaker inputs / outputs on all channels.
If no powered accessories are to be installed behind your radio, the LPH-SPK(F) pigtail is not needed. If using this harness, ensure all loose ends are connected or insulated prior to plugging into the main LPH harness to prevent a short circuit.
Wiring Connection Chart (All Models)
| LPH-SPK (A) | LPH-SPK (B) | LPH-SPK (C) | |||
|---|---|---|---|---|---|
| Wire Color | Function | Wire Color | Function | Wire Color | Function |
| White | Front Left (+) | Green | Rear Left (+) | White | Front Left (+) |
| White/Black | Front Left (-) | Green/Black | Rear Left (-) | White/Black | Front Left (-) |
| Gray | Front Right (+) | Violet | Rear Right (+) | Gray | Front Right (+) |
| Gray/Black | Front Right (-) | Violet/Black | Rear Right (-) | Gray/Black | Front Right (-) |
| LPH-SPK (D) | LPH-SPK (E) | LPH-SPK (F) | |||
|---|---|---|---|---|---|
| Wire Color | Function | Wire Color | Function | Wire Color | Function |
| Green | Rear Left (+) | Blue | Left (+) | Yellow | Constant 12V |
| Green/Black | Rear Left (-) | Blue/Black | Left (-) | Red | Accessory |
| Violet | Rear Right (+) | Red | Right (+) | Black | Ground |
| Violet/Black | Rear Right (-) | Red/Black | Right (-) | ||
LPH-SPK (E) can be used in both front or rear configurations based on user preference.
LPH-SPK (F) Note: Not all vehicles will provide accessory signal (Red Wire).
Example Installation - Mono Amplifier - LPH-SPK(E)
For this application, split either the front or rear channels on the main LPH harness and insert LPH-SPK(E) in between. This provides a High-Level output for various devices such as an Amplifier, DSP, or LOC that can accept a high-level input signal.
LPH-SPK(F) can be used to provide Power, Ground, and in some cases Accessory power for your audio adapter.
Important Steps:
- Test your vehicle's factory speaker signal to verify that low-level frequencies are present.
- This example also maintains your factory speaker connection as it is bypassed through the harness.
Diagram Description: A block diagram illustrates the connection: "LPH TO RADIO CONNECTION" connects to "LPH-SPK(E)", which then connects to "LPH TO OEM HARNESS". The "LPH TO OEM HARNESS" connects to an amplifier. "LPH-SPK(F)" is shown connecting to the amplifier, providing power (Yellow: Constant 12V, Red: Accessory, Black: Ground).
Example Installation - Multi-Channel Amplifier - LPH-SPK(A/B/C/D)
For this application, split either the front and/or rear channels on the main LPH harness and insert LPH-SPK(A-D) in between.
Harnesses LPH-SPK(C) and LPH-SPK (D) will provide a High-Level output for various devices such as an Amplifier, DSP, or LOC that can accept a high-level input signal.
Harnesses LPH-SPK(A) and LPH-SPK(B) will allow you to run the output of your new aftermarket amplifier back through your factory wiring.
Diagram Description: Block diagrams show two scenarios. The first depicts "LPH TO RADIO CONNECTION" connecting to "LPH-SPK(A/B/C/D)", which then connects to "LPH TO OEM HARNESS". The "LPH TO OEM HARNESS" connects to an amplifier, which then connects to multiple speakers. The second diagram shows specific connections for LPH-SPK(A) and LPH-SPK(B) connecting to an amplifier, and LPH-SPK(C) and LPH-SPK(D) also connecting to an amplifier, with both amplifiers then connecting to speakers via the "LPH TO OEM HARNESS".
