PAC LPHHY03 Audio Integration T-Harness Installation Guide
- June 10, 2024
- PAC
Table of Contents
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.
(Listed Below)
-Adding Multi-Channel Amplifiers Front
-Adding Multi-Channel Amplifiers Rear
-Adding Multi-Channel Amplifiers Front / Rear
-Adding Mono Amplifier Standalone Subwoofer
-Provides Power/Ground/ACC
-Provides speaker inputs / outputs on all channels
-LPH-SPK(A) / (C)
-LPH-SPK(B) / (D)
-LPH-SPK(A) / (B) / (C) / (D)
-LPH-SPK(E)
-LPH-SPK(F)
If no powered accessories are going to be installed behind your radio you will not need to use the LPH-SPK(F) pigtail. If you are using this harness make sure your loose ends are connected prior to plugging in to the main LPH harness. If not connected to a device or insulated this could cause a short circuit.
Wiring Connection Chart (All Models)
| LPH-SPK (A) | LPH-SPK (B) | LPH-SPK (C) |
|---|---|---|
| Front – Signal from AMP | Rear – Signal from AMP | **Front – Signal |
to AMP
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)
---|---|---
Rear – Signal to AMP| Signal to AMP (SUB-T)| Power Extension**
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
LPH-SPK (E) Can be use in both front or rear configurations based on user
preference.
LPH-SPK (F) Not all vehicles will provide accessory signal (Red Wire).
Example Installation
Mono Amplifier – LPH-SPK(E)
LPH TO RADIO CONNECTION
For this application you will want to split either the front or rear channels
on the main LPH harness and insert (LPH-SPK(E)) in between. (See Photo).
This will provide 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 Acc for
your audio adapter (See Photo Bottom Right).
OEM RADIO HARNESS
You will want to test your vehicles factory speaker signal to verify that low
level frequencies are present.
This example will also maintain your factory speaker connection as it is
bypassed though the harness.
Example Installation – Mono Amplifier – LPH-SPK(E) Continued
LPH TO RADIO CONNECTION
For this application you will want to split either the front and / or rear channels on the main LPH harness and insert LPH-SPK(A-D) in between. (See Photo).
LPH TO OEM HARNESS
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 you factory wiring.
Example Installation – Multi-Channel Amplifier – LPH-SPK(A/B/C/D) Continued
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