PAC AmpPro AP4-FD31 Amplifier Interface
Kerby from Miami, FL on 7/2/2025
2025 Ford F-150
It connects to the factory stereo with the necessary wiring to move on to the next part of the installation.
Pros: Just the word of mouth from all the great installers on the internet contacts.
Cons: There's none with this unit, pricing can vary during the season.
0 of 0 found this helpful
PAC AmpPro AP4-FD31 Amplifier Interface
Benjamin from Port St Lucie, FL on 5/27/2025
2023 Ford F-150
This thing is fantastic. Provides a distortion free (confirmed with scope) 4/5V lineout. Easily allows adjustment of factory chime volumes, minimum volumes, etc. Provides a remote level knob for channels 5/6 which can be used to control a subwoofer amp.
Pros: Does exactly what it says it does. Distortion free output. Stupid simple to use.
Cons: $$$
0 of 0 found this helpful
Not updated for 2024
Walter Allen from Manteca, CA on 9/23/2024
2024 Ford F-150 Raptor
It helped me replace the factory amp, but the instructions leave a lot to be desired. They are written in a way as if you already have a lot of installer knowledge. Plus they do not have info on when you need to use some of the harnesses and they did not have the current wiring diagram for my 2024 model. I called them and they assured it would work but did not have the wiring for me and it did not match the 2024 wiring. I had to use a tone generator to determine the right wiring to connect it properly. So I would say if considering this make sure you check out other options as well to see which one has the right wiring diagram and support for your model year with better instructions.
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3 of 3 found this helpful
PAC AmpPro AP4-FD31 Amplifier Interface
Cleveland from Pooler, GA on 8/26/2024
2023 Ford F-150
0 of 1 found this helpful
PAC AmpPro AP4-FD31 Amplifier Interface
Nathan from Beverly Hills, FL on 8/5/2024
2020 Ford Ranger
Works excellent for my 2020 Ford Ranger! Got rid of crappy B & O system. Installed in place of factory amp. Easy instructions. And I love the chime volume adjuster.
Pros: Works like a charm
Cons: No way to screw it into a board. Had to use small zip ties to mount to the Abs plastic.
2 of 2 found this helpful
Must have for B&O integration
Lee from COLUMBUS, GA on 1/12/2024
2023 Ford F-150
This device does two things that I consider mandatory when upgrading your audio system. First, it generates a flat signal for six RCA outputs at 5volts or an optical digital. Second, it allows adjustment of the factory chime volume. If you have ever heard an amplified chime you know how valuable this is! Bonus feature is the harness that interfaces with the OEM speaker wire. No need to cut into the factory wiring. There are some DSPs out there that claim to cleanup the factory EQ. That's true if you never adjust the volume with your factory knobs ever again. The EQ changes throughout the volume range. You have to use the DSP app/knob to adjust the volume. There is another option out there that's been around longer. I personally haven't used it. Heard mixed reviews and it's more expensive.
Pros: Excellent value Easy install
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4 of 5 found this helpful
Time saver
Kevin from RENO, NV on 1/9/2024
2021 Ford Bronco
Works as advertised no issues yet
Pros: Saved a bit of time not having to splice wires. Works as advertised. No issues as of yet. Basically takes BnO amp out of play and no guesses out of what wire is to what speakers.
Cons: Seemed a bit pricey$$$$$$$ but better than hacking up your 70k ride with splicing etc.
5 of 5 found this helpful
B&O Must have to add aftermarket Amp/DSP
Peter from CUMMING, GA on 12/18/2023
2022 Ford F-250 Lariat
This is a great substitute to the more expensive piece from another vendor. This makes adding Aftermarket Amps and DSP's a breeze in a Ford with the B&O stereo system. The optical interface works great into higher end DSP's. The RCA's do the trick when going directly into AMP
Pros: Optical Output Variable 4-5V outputs Upgrade the firmware with a PC
Cons: Not the easiest to mount. Mounting flange would have been a nice.
5 of 6 found this helpful
PAC AmpPro AP4-FD31 Amplifier Interface
Joel from Cabot, AR on 11/13/2023
2020 Ford F-150 Lariat
Perfect for someone looking for a simple solution
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2 of 2 found this helpful
FORD EXPLORER 2020 PAC AUDIO
Jose from Fredericksburg, VA on 9/24/2023
This thing is a beast. Zero complaints. No glitches, no errors, and the optical out works flawlessly. Been using it for a few months and was testing it before reviewing. This is a solid product and does what its suppose to do with no complaints.
Pros: Best way to add amplifiers to for Ford Vehicles with B&O Systems.
Cons: Zero.
8 of 8 found this helpful
Plug and play
Devon from Moscow, ID on 3/8/2023
2020 Ford F-350 Lariat
Super easy install. Came with a bunch of extra wires for different applications, not sure why though, it was only for B&O systems and that would be the only set of wires to install with that system. Either way too much is better than not enough! Easy plug and play!
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11 of 11 found this helpful
