Customer Reviews

PAC LPHFD31 LocPro Advanced T-Harness

Fantastically easy to use.

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Install made easy

This harness is spot on! Easy to use and, made install a breeze. No need to cut into the factory harness. I used it to install a Wavetech 500.4 amp on a 23 Ford Maverick with its stock headunit. There are no after market stereos for this vehicle. Crutchfield advices not to change anyway.Used with Crutchfields 9 wire cable I had purchased a while back for wiring amps. The Maverick has ample room to lay this harness inside its space without having to shove or "stuff" the wires tightly. Do get the connector kit, Item #669PP608, for your install, it'll make installation much easier. Again I used this to install an aftermarket amp, along with Alpine speakers, to the factory stereo. This truck now has a rockin audio system!

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Keep It Factory!

Simple solution to add an aftermarket Amplifier to your O.E. infotainment system. Its literally a plug and ply type of install. The hardest part of the install was gaining access to the head units connectors but Crutchfield provide you with step by step technical documentation to help you with the install. Highly recommend this T-Harness for your specific vehicle if you decide to keep the the O.E Infotainment system.

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Super easy to install

So easy to use instructions are great and easy to read worked flawlessly

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PAC LPHFD31 LocPro Advanced T-Harness

Works as expected. I could technically just cut the wires and make my own splice buy my time is money and this thing is easy.Plus I can remove any trace of having aftermarket equipment from the vehicle if I wanted to be that emotional about it. I'd buy another if I had the need for it. Just made adding an amp simpler and guaranteed results.

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PAC LPHFD31 LocPro Advanced T-Harness

Great product, made the install easy!

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perfect for aftermarket

Used in a 2024 f150. Works incredibly well and made after market connections a snap!

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PAC LPHFD31 LocPro Advanced T-Harness

The T-harness made it very easy to install aftermarket amps & a line converter to my factory head unit. Gone are the days of cutting & splicing wires.

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Awesome!

Harness worked great and has no issues!

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Cheaper than Plug-n-Play kits - works just as well

The harness with extension kit worked great. I would have given it a 5-star rating but for one thing - the basic harness is long enough to splice in but you'll want the extension kit to give you an extra 6"-12" if you mount the amp under the steering column. It the basic harness was just slightly longer, it would have been plug-n-play versus paying an extra $50 for 12" of harness (Bronco).

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PAC LPHFD31 LocPro Advanced T-Harness

Product fit and is working properly

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Must have for factory hookup

Must have to maintain original wiring and make connections to factory unit much easier. You will need female RCA connectors to wire in if you plan on using RCA speaker cables. Crutchfield tech support very helpful answering all my questions!

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2024 F-150 (non B&O)

This harness is absolutely a game changer! Adding a line out converter has never been easier. Accessing the rear of the radio was a bit of a chore but the harness was perfect! Added an 8" JL powered sub which sounds great for its size!

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PAC LPHFD31 LocPro Advanced T-Harness

If you are using this for a 2024 f150 with the 12 inch screen you do not need to take the entire dash apart. Just take out the center speaker and everything can be installed from the top of the dash.

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Dont do it.

Do not buy this harness unless you have some knowledge of how to build out a complete harness. There are other options for a bit more money that are much easier as the harness is built as plug and play. THIS IS NOT PLUG AND PLAY. I was led to believe by Crutchfield that this would be no problem to get to work. Not at all the case if you've got no experience with a harness. Just go buy one that is fully built for whatever you need it to do.

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Crutchfield response on 3/3/2025

David contacted our Customer Support team and set up a return. Purchases from Crutchfield can be returned or exchanged within 60 days.

So easy. Plug and play.

This worked great. It was plug and play. I spent hours and hours trying to figure out the wiring in a 2022 Ford Explorer Timberline Edition to be able to hook up an aftermarket amp and a dual powered sub box and I could not get it right for the life of me. This took me 10 min. I wish I would've went this route right away.

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PAC LPHFD31 LocPro Advanced T-Harness

Very good materials and very easy to install

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PAC LPHFD31 LocPro Advanced T-Harness

Does what it's supposed to do. Great.

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Super Easy

Super easy, to use, once I was able to access the wires located behind the dash. Removing some of the Bronco panels were a bit tricky, trying to not break any tabs or clips. Much easier and faster than splicing and soldering. Absolutely love the sound upgrade it helped make with the JBL Bass Pro Nano.

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Slemmer1987

Imagine if you will. A way to get the most out of your factory radio, adding clean undistorted volume with ZERO wires cut from factory harness. This Harness allows someone to hook up an aftermarket AMP (suggest DSP amp) to factory and again without cutting ANY WIRES! Thanks Crutchfield! Once again you make a shade tree 12 volt moron into a m genius.

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PAC LPHFD31 LocPro Advanced T-Harness

Worked flawlessly on 22 F250 XLT Bought the extensions to go back all the way behind rear seat and come right back up. Wires clearly marked and quite fool proof actually.

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PAC LPHFD31 LocPro Advanced T-Harness

Product seems great. Instructions are a little vague. Not to clear on when do you use which adapter harness, but nothing YouTube can't fix.

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A must have, and cost effective solution

This is a must have when adding a DSP and/or AMP when upgrading your audio system. Don't buy anywhere else. The instructions were also clear. This is only minus one star, because the harness doesn't support the tweeters and front doors as separate wires.

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PAC LPHFD31 LocPro Advanced T-Harness

Installed in 2023 F150 XLT. Non amplified. Easy to plug into factory acm. Ran front signal wires to AudioControl lc-1.800 paired with 2 jl audio 10w3v3. Sounds great. Will eventually use it to also run a AudioControl D-6.1200 and upgrade all door speakers as well.

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PAC LPHFD31 LocPro Advanced T-Harness

Makes install a breeze while maintaining factory wiring harness integrity.

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Outstanding

This thing is easy to install and works great in my 2021 F250

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PAC LPHFD31 LocPro Advanced T-Harness

This harness works like a charm since my vehicle 2018 Ford Ecosport not able to replace the stereo since it os a touch panel. Easy plug n play

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PAC LPHFD31 LocPro Advanced T-Harness

Fits perfect! Easy to install.

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PAC LPHFD31 LocPro Advanced T-Harness

Excelente artículo no hay razones para dañar la Cabrera del manufacturero siempre que existan personas eficientes como ustedes .

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Excellent Harness for non-amplified Ford F150!

This is a great T-harness for my 2023 Ford F-150 with the base stereo (non-amplified)! Gives you the option to add just a sub, or to hit all speaker wires for a multi channel setup like in my situation. In addition to the harness I ordered two 20ft lengths of Crutchfield 9-conducter wire to make the loop back harness complete (send 8-speaker wires, 4-pair from the factory ACM to the high-level input side of my multi-channel amp, and another run of 8-speaker wires from my multi-channel amp back to the ACM harness to connect output side of my amp to the factory wiring for the door speakers) 17ft of length for each is all you need to reach behind the back seat on the drivers side. You will also need load resistors (audio control AC-LGD-20 for non-amplified factory system) in order to retain all features of your factory head unit. The load resistors trick the system into thinking it sees the factory speaker load still connected. I also connected to the power/ground extension of the harness for turn on leads for my DSP. For this I used 2 runs of 18awg OFC primary wire that I had laying around.

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PAC LPHFD31 LocPro Advanced T-Harness

Easy install

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PAC LPHFD31 LocPro Advanced T-Harness

fits perfect

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Functional, but not pretty.

While the harness does fit, and functions as expected, this looks like an amateur build. One would expect the exposed wires coming out of the connections to be wrapped. I will do this myself.

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PAC LPHFD31 LocPro Advanced T-Harness

Exactly what I needed.

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PAC LPHFD31 LocPro Advanced T-Harness

Excellent

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Greaf product

Very easy install, I didn't need to take factory radio all the way out.

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Great product

A real time saver and you don't have to cut into your wiring harness. Hardest part of job was removing the trim panels. The control module is in the very right rear quarter panel of the 2023 Explorer, once you get the tie down bolt out you can loosen the panel enough to access and install the harness you don't have to remove panel.

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PAC LPHFD31 LocPro Advanced T-Harness

Made installation easy!

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PAC LPHFD31 LocPro Advanced T-Harness

Awesome

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PAC LPHFD31 LocPro Advanced T-Harness

Awesome harness! Plugged it in my 2021 F150 after soldering all connections. Super simple to use with stinger speedwire. Hardest part was plugging it in. I couldn't get the head unit removed so I dropped in from the center speaker hole. Had to blindly feel for the slot while bending wires aside. Worked out great!

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PAC LPHFD31 LocPro Advanced T-Harness

Able to wire up the necessary connections for behind the dash in the comfort of my home instead of constrained in the vehicle. Brought the wired up harness and plugged it right in. Good solid connections, well labeled wires, works like a charm.

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Easy install

Easy install. Used it to wire a scosche loc90 line output converter in for a sub in a 2022 F-250 XLT. Comes with wires that are plug and play to do a sub amp our a whole audio system amp.

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PAC LPHFD31 LocPro Advanced T-Harness

Plug and play. as easy as it gets..

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Pretty good.

Worked good. However, note that this does not provide a blue 12v remote wire. I called PAC about this and they said they don't know why they are packaged this way.

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PAC LPHFD31 LocPro Advanced T-Harness

Worked as expected. If you know what you're doing this is a much cheaper alternative than the prebuilt harnesses.

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PAC LPHFD31 LocPro Advanced T-Harness

Perfect for integrating a DSP into the factory head unit.

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PAC LPHFD31 LocPro Advanced T-Harness

Worked as advertised. Saved me from splicing into the factory wiring

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PAC LPHFD31 LocPro Advanced T-Harness

Made easy work connecting up a 5 channel amp and sub system in my 6 speaker 4G Escape.

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PAC LPHFD31 LocPro Advanced T-Harness

Another must when adding an aftermarket amplifier to factory radio. Simple plug and play, no need to cut any factory wires, preserving factory warranty.

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Plug & Play

Works perfectly for tapping into hi level speaker outputs from head unit, and reconnecting amp outputs back into Ford OEM speakers harness. However, blue / white remote amp signal wire was looped into harness and not connected on either end! Used the crimp on butt connector that was provided on one end before noticing Fortunately, my Amp has auto on signal detection .

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