PAC - APH-FD01 - 10ft. Speaker Connection Harness for Select Ford Vehicles For use with AP4-FD11 and AP4-FD21

PAC – APH-FD01

10 ft. Speaker Connection T-Harness
For Select Ford Vehicles
Designed for use with AP4-FD11 and AP4-FD21 AmpPRO Interfaces

DESCRIPTION

• Plug-and-play speaker connection harness used to route audio signal and speaker wiring cleanly when integrating aftermarket amplifiers or DSP systems into select Ford vehicles.

• Designed to work specifically with the PAC AP4-FD11 and AP4-FD21 AmpPRO interface modules.

• Allows re-amplification of factory speakers or clean routing of signal to external amplifiers, without cutting or modifying OEM wiring.

FEATURES

• No wire cutting, splicing, or pin probing required — preserves factory harness.

• Extends speaker-level audio paths from the factory amplifier or head unit to aftermarket equipment.

• Maintains full OEM functionality, including factory alerts, Bluetooth audio, and navigation prompts.

• Provides front and rear speaker lead access for amplifiers, DSP processors, or re-amplification systems.

FUNCTIONAL APPLICATIONS

• Re-route factory speaker output into an aftermarket amplifier.

• Feed high-level audio into a DSP for tuning and stage correction.

• Return processed/amplified signal back to factory speaker wiring using the same harness path.

• Ideal for OEM-plus upgrades, dealership-safe installs, and reversible modifications.

SPECIFICATIONS

• Harness Length: ~10 ft — suitable for routing from fairings / dash / rear amp locations to trunk, saddlebag, or seat-area amp mounting points.

• Signal Type: Speaker-level (high-level audio)

• Connector Style: Ford OEM-style plug and inline pass-through connectors

• Conductor Material: Multi-strand copper with automotive-grade insulation

• Supported Systems: Factory amplified and non-amplified vehicles when paired with AP4-FD11 or AP4-FD21

INSTALLATION NOTES

• Designed to daisy-chain between:

  1. Factory harness, and

  2. AP4-FD11 or AP4-FD21 module, then

  3. Aftermarket amplifier / DSP routing

• Typically installed near factory amp location or behind the head unit, depending on vehicle trim.

• If installing multiple amplifiers, ensure proper signal routing and speaker impedance are maintained.

FITMENT

• For select Ford vehicles compatible with:

  • AP4-FD11

  • AP4-FD21

• Fitment is determined by factory amplifier / radio connector layout, not model name alone.

INCLUDES

• APH-FD01 10 ft. T-Harness Assembly

• Basic signal routing diagram (batch dependent)