
PAC Manuals & User Guides
PAC (Pacific Accessory Corporation) designs high-quality car audio interface solutions, including radio replacement kits, steering wheel control modules, and amplifier integration interfaces.
About PAC manuals on Manuals.plus
PAC (Pacific Accessory Corporation) is a trusted name in the mobile electronics industry, providing essential integration solutions for car audio installations. As a part of Stinger Solutions (AAMP Global), PAC develops technology that allows aftermarket radios, amplifiers, and safety cameras to work seamlessly with complex factory vehicle wiring and data bus systems.
Key product lines include:
- RadioPRO: All-in-one radio replacement interfaces that retain factory features such as steering wheel controls and OnStar.
- AmpPRO: Advanced amplifier interfaces that provide a clean, variable pre-amp output for aftermarket sound systems.
- SWI Series: Universal and vehicle-specific steering wheel control retention modules.
- Integration Accessories: Harnesses, antenna adapters, and dash kits for a professional finish.
Whether you are upgrading a Jeep, Ford, GM, or Toyota, PAC offers the hardware and firmware needed to ensure a plug-and-play installation.
PAC manuals
Latest manuals from manuals+ curated for this brand.
PAC AP4-GM81 Advanced Amplifier Interface for General Motors Owner’s Manual
PAC HDK001X Aftermarket Stereo Dash Kit Instruction Manual
PAC RP5-GM61 Wiring Interface Instruction Manual
PAC TUN14HX Stinger HORIZON 10 Radio Replacement Kit Instruction Manual
PAC SR-TAC16HX Radio Replacement Kit Instruction Manual
PAC RP4-NI13 Factory System Adapter Owner’s Manual
PAC SR-GM14HX Radio Replacement Kit Instruction Manual
PAC APSUB-GM61 Advanced Subwoofer Amplifier Instruction Manual
PAC SR-TUN14HX Radio Replacement Kit Installation Guide
PAC LPH Harness Instruction Guide for Amplifier Installation
PAC LPH Harness Instruction Guide: Installation and Wiring
PAC LPH Harness Instruction Guide: Installation and Wiring
PAC AP4-FD31 Advanced Amplifier Interface for Select Ford Vehicles - Installation and Configuration Guide
PAC RP4.2-TY11 Radio Replacement and SWC Interface for Toyota/Lexus/Scion - Installation Guide
PAC NU-GM51 Navigation Unlock Interface for GM Vehicles - Installation and Operation Guide
PAC AP4-CH42 Advanced Amplifier Interface for Chrysler, Dodge, Jeep, RAM - Installation and Setup Guide
CP1-FRD1 CANPRO Harness Installation Guide for Select Ford Vehicles
PAC LPH Harness Instruction Guide: LPA-E4, LPA2.4, LPA1.4 Installation
ControlPRO Steering Wheel Control Interface Quick Start Guide
PAC C2R-FRD1 Radio Replacement Interface: Installation, Operation & Troubleshooting Guide for Ford/Lincoln/Mercury
PAC SWI-CP5 ControlPRO 5 Universal Steering Wheel Control Retention Interface Installation and Programming Guide
PAC manuals from online retailers
PAC C2R-FRD1 Radio Replacement Interface User Manual
PAC LC-1 Remote Amplifier Level Controller User Manual
PAC OS5 Radio Replacement Interface with Onstar Retention User Manual
PAC Concealer Brush 081 Instruction Manual
PAC C2R-CHY4 Radio Replacement Interface for Chrysler Instruction Manual
PAC OS-2X Radio Replacement Interface with OnStar Retention User Manual for Select GM Class II Vehicles
PAC Audio AP4-TY13 (R.2) Amplifier Integration Interface User Manual for Toyota and Lexus Vehicles
PAC RP4.2-HY12 RadioPRO Radio Replacement Interface User Manual
PAC RP4-CH11 Radiopro4 Stereo Replacement Interface User Manual
PAC Intelligent 4-CAM Switcher VS41 User Manual
PAC APSUB-CH41 AmpPRO SUB Advanced Amplifier Interface Instruction Manual
PAC RP4.2-HY11 Radiopro Radio Replacement Interface Manual
PAC support FAQ
Common questions about manuals, registration, and support for this brand.
- How do I update the firmware on my PAC interface?
Most PAC interfaces can be updated using the RadioPRO PC Application or a specific updater tool. Connect the module to your computer via USB and download the latest firmware from the PAC Audio website.
- What does the AmpPRO interface do?
The AmpPRO interface (e.g., AP4 series) allows you to add aftermarket amplifiers to a factory sound system while retaining the factory radio's volume, balance, and fade controls. It provides a clean, variable pre-amp output.
- How do I retain steering wheel controls with a new radio?
PAC offers steering wheel control (SWC) interfaces like the SWI-CP5. Many RadioPRO replacement kits also include built-in SWC retention that is pre-programmed for specific vehicles.
- Why is there no audio after installing my radio replacement kit?
If your vehicle has a factory amplifier, ensure the interface is connected to the correct amplified output port and that the factory amplifier turn-on wire (usually Blue/White) is connected. You may need to cycle the ignition to initialize the factory system.

































