PAC - Amplifier Integration Interface for Select Ford Vehicles with 8.4” Radio and Sony System - Black/Blue
About this product
Simplify amplifier installation in your Ford vehicle with this Amplifier Integration Interface by PAC. The AP4-FD21 eliminates the need for DSP and summing devices by providing a 6-channel preamp output so you can upgrade your amplifier without modifying the factory radio. This amplifier integration interface retains all audio from factory features and includes plug-and-play connections for easy installation.
Compatible with select Ford vehicles equipped with 8.4” radios and Sony factory amplified audio systems
Including 2015-2018 Edge, 2016 Escape, 2015-2017 Expedition, 2011-2018 Explorer, 2013-2017 F-150, 2013-2019 F-250, and 2013-2019 F-350 models.
Also compatible with 2013-2019 F-450, 2013-2019 F-550, 2012-2017 Focus, 2013-2016 Fusion, 2019-2020 Mustang, and 2013-2015 Taurus models for a customized fit.
Variable 5V RMS front, rear, and sub preamp outputs
Features fading, balance, equalization, and level control capabilities.
Customized OE bass, mid, and treble center frequency selection
Allows precision tuning.
Provides flat audio output
For a solid audio foundation.
Retains audio from factory features
Including SYNC, Bluetooth audio, safety warning chimes, parking sensor chimes, and navigation prompts.
Data-controlled remote amplifier turn-on
Automatically powers the amplifier when the radio is turned on.
Enables subwoofer installation
Allows you to add a subwoofer to the factory sound system and adjust sublevel with the included bass knob.
Optional TOSLINK optical output
Provides a variable 2-channel fiber optic digital audio output when used in conjunction with APA-TOS1 (sold separately).
Plug-and-play installation
For quick and easy setup.
- BrandPACModel NumberAP4-FD21Product NameAmplifier Integration Interface for Select Ford Vehicles with 8.4” Radio and Sony SystemColorBlack/BlueVehicle CompatibilitySelect 2011-2020 Ford vehicles equipped with 8.4" radios and Sony factory amplified audio systemsProduct CompatibilityAmplifier
Reviews
Rating 4.8 out of 5 stars with 9 reviews
Top Mentions
- Installation (4)
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
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Simplify amplifier installation in your Ford vehicle with this Amplifier Integration Interface by PAC. The AP4-FD21 eliminates the need for DSP and summing devices by providing a 6-channel preamp output so you can upgrade your amplifier without modifying the factory radio. This amplifier integration interface retains all audio from factory features and includes plug-and-play connections for easy installation.

Add an amplifier to nearly any radio with the KISLOC2 Stereo Line-Out Converter. Experience true sonic accuracy at any volume level with all the sparkling highs and thunderous lows of your original audio. KISLOC2 Stereo Line-Output Converter Unlike traditional LOCs the KISLOC2 is designed without inductors to deliver a completely flat frequency response at all volume levels. Using nothing more than your factory speaker wires the innovative KISLOC2 automatically converts the speaker signal into both an RCA signal and a powerful 100 milli-amp 12-volt remote wire using DC offset. Powerful enough to turn on multiple amplifiers the 12-volt remote wire delivers plenty of power without hunting for a switched 12-volt power source. Accepts up to 55 watts (16 volts) of input signal Fully compatible with standard radios and most smart radios* Delivers up to an 8-volt output signal Flat 20Hz-20kHz frequency range at all volume levels Includes a powerful 100 milli-amp remote turn-on wire. No 12V power source needed! LED indicator for DC offset turn-on *Amplifier output of smart radio must have 60 impedance or lower. What's in the Box 46KISLOC2 line output converter Owner's manual Specifications Accepts up to 55 watts (16 volts) of input signal Fully compatible with standard radios and most smart radios* Delivers up to an 8-volt output signal Flat 20Hz-20kHz frequency range at all volume levels Includes a powerful 100 milli-amp remote turn-on wire. No 12V power source needed! LED indicator for DC offset turn-on

Easily add an aftermarket amplifier or subwoofer to your vehicle’s factory audio system with this 2-Channel Active Line Output Converter with AccuBASS and Subwoofer Control by AudioControl. The LC2i PRO converts speaker-level (high-level) audio signals to RCA preamp (low-level) signals so you can install an aftermarket amplifier or subwoofer without replacing your factory radio. This two-channel line output converter also features AccuBASS technology so you can turn up the volume without losing bass.
| Pros for PAC - Amplifier Integration Interface for Select Ford Vehicles with 8.4” Radio and Sony System - Black/Blue | |||
|---|---|---|---|
| Installation | Overall Performance, Ease of use, Installation, Compatibility, Remote Turn-On | Ease of use, Installation, Compatibility, Overall Performance, Fit | Ease of use, Installation, Sound Quality, Bass, Price |
| Cons for PAC - Amplifier Integration Interface for Select Ford Vehicles with 8.4” Radio and Sony System - Black/Blue | |||
| There were no cons for this product— | Price | Polarity | There were no cons for this product— |





















































