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Axxess AFDI-5V

12-volt to 5-volt converter — eliminates the turn-on "thump" in Ford-built vehicles with amplified systems

Item # 120AFDI5V

If you've replaced the radio in your Ford, Lincoln or Mercury, you've heard an audible "thump"...

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In Stock
$19.99

About the Axxess AFDI-5V

If you've replaced the radio in your Ford, Lincoln or Mercury, you've heard an audible "thump" sound when you turn on the power. The reason? Your Ford radio sent 5 volts to turn on the factory amp, not the 12 volts that your new car stereo delivers. In other words, the amp is simply getting too much juice.

If you've replaced the radio in your Ford, Lincoln or Mercury, you've heard an audible "thump" sound when you turn on the power. The reason? Your Ford radio sent 5 volts to turn on the factory amp, not the 12 volts that your new car stereo delivers. In other words, the amp is simply getting too much juice.

This AFDI-5V converter from Axxess will drop that voltage down to 5 volts, which the factory amp can handle better for an easier (and quieter) start. Warranty: 60 days.

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What's in the box:

  • 12-volt to 5-volt converter harness
  • Instructions

Customer reviews

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Axxess AFDI-5V Reviews

Average Customer Review(s):

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Pros:

Cons:

Crutchfield response

More details on the Axxess AFDI-5V

Product Research

Features

Overview: When replacing factory radios in vehicles with factory installed amplifiers (mainly in Ford, Lincoln, and Mercury vehicles), an audible "pop" through the speakers may be heard; especially the subwoofer. The main reason for this "pop" noise is that the factory amplifiers do not require 12-volts to turn on, but instead require 5-volts. The Axxess AFDI-5V 12-volt to 5-volt converter takes a normal 12-volt turn-on from an aftermarket head unit and drops it down to 5-volts, which the factory amplifier handles better. A 3-wire hook-up makes the AFDI-5V simple to install.

  • Connect the Blue/White wire to the aftermarket head unit's amplifier turn on wire.
  • Connect the Black wire to chassis ground.
  • Connect the Blue/Red wire to the vehicle's factory amplifier turn-on wire.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Again because it was free [ E  Mar 08, 2019 ]
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Faster installation [ james  Feb 19, 2019 ]
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Previously purchased one from Crutchfield [ Eduardo  Feb 19, 2019 ]
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this was the recommended item [ Kevin  Feb 10, 2019 ]
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I need it for my new stereo [ Samuel  Feb 05, 2019 ]
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Need it to install [ Martin  Feb 04, 2019 ]
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Recommend [ James Keith  Feb 01, 2019 ]
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Free ! [ jason  Jan 25, 2019 ]
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Helpful [ Calistro  Jan 20, 2019 ]
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Required for installation [ Daniel  Jan 19, 2019 ]
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ease and best connection to vehicles wiring [ Vincent  Dec 29, 2018 ]
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Recommended [ Thomas  Dec 27, 2018 ]
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Because it was recommended for installation [ Shirley  Dec 18, 2018 ]
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I don't exactly know what this item is for but I trust that the folks at Crutchfield are selling me a product that I need for a smooth installation. [ Jamie  Dec 02, 2018 ]
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came with purchase [ Jeffrey  Nov 20, 2018 ]
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needed for install [ michael  Nov 16, 2018 ]
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ease of install [ SUE M  Oct 31, 2018 ]
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One time on another mustang of mine I didn't use this later I had to take the radio back out that thump bugs the heck out of me. If you have amps you want this. [ KENNETH R  Oct 31, 2018 ]
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For this price you can't go wrong. Buy the harness and get rid of the "thump". [ Kevin  Oct 02, 2018 ]
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included [ Barry  Sep 22, 2018 ]
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Included [ Jesse  Sep 21, 2018 ]
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Directed to this by Theo on chat service. [ Michael  Sep 18, 2018 ]
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Can live without, but the annoying amp sound you will get feeding 12v into the amp instead of the desired 5v will get old real quick [ james  Sep 13, 2018 ]
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Recommended by CF [ Owen  Sep 10, 2018 ]
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Was part of the kit. Nonetheless, nice improvement. [ Richard  Sep 04, 2018 ]
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Apparently needed for Ford installs. Definitely want the proper voltage! [ Donald  Sep 04, 2018 ]
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To make the install easy and simple. [ Colin  Aug 31, 2018 ]
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Norman helped me [ Austin  Aug 19, 2018 ]
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I have no desire to hear a pop by supplying the wrong turn on voltage to the factory Mach 460 amplifiers. They use five volts to turn on. You would think 12 volts would be the target for a car, but no. [ Robert  Aug 19, 2018 ]
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recommended by Troy [ ROBERT P  Aug 17, 2018 ]
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Came with install kit [ Jonathan  Aug 16, 2018 ]
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It was free but dont think i need it [ Omar  Aug 13, 2018 ]
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Have the Ford power up THUMP want to eliminate, told this would do it [ PHILIP  Jul 29, 2018 ]
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Chad told me to buy them. [ Alexander  Jul 11, 2018 ]
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Ease of installation [ Scott  Jul 08, 2018 ]
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needed for install [ james  Jul 06, 2018 ]
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Required for the install [ Robert the Runner  Jun 24, 2018 ]
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Keep factory sound [ Raymond  Jun 21, 2018 ]
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fitment [ James  Jun 13, 2018 ]
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To complete hookup to factory sub woofer. [ Robert  Jun 11, 2018 ]
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Recommended by a Crutchfield service representative. [ Scott  Jun 03, 2018 ]
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Part of the "must have" stuff for the new receiver. [ Michael Allan  May 29, 2018 ]
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i want to use my steering wheel after wards, i have never had working steering wheel controls until this year, and now i don't want to go away from using them. [ Matthew  May 25, 2018 ]
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Need it for my vehicle [ Eduardo  May 23, 2018 ]
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It is recommended to use factory amps [ Michael  May 21, 2018 ]
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Included with purchase. [ Mark Michael  May 05, 2018 ]
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It was chosen for me by Crutchfield. [ Scott  Apr 16, 2018 ]
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It came with the package. [ Rene  Apr 10, 2018 ]
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Fits my application [ Julian  Apr 09, 2018 ]
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Removes the turn on thump from the factory built in amplifier. This diode just makes the system run nicer and reduces the chance of damaging the amplifier or speakers. [ JEREMIAH  Mar 30, 2018 ]
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for my 2003 Mach 1 [ PAUL  Mar 14, 2018 ]
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For installation [ PAUL  Mar 13, 2018 ]
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Part of Crutchfield-selected installation kit. I've heard sufficient good things, and my own prior experience, I trust them to tag what I need. [ Kris  Mar 12, 2018 ]
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this will change the amp turn on from a 12 volt to a 5 volt supply and eliminate amp thump. [ Bill  Mar 02, 2018 ]
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ease of installation [ DENNIS  Mar 02, 2018 ]
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because it was recommended and free [ Patrick  Feb 24, 2018 ]
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Necessary for aftermarket Soundsystem [ Blake  Jan 30, 2018 ]
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your recommendation on your site [ Pete  Jan 24, 2018 ]
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goes with the radio I bought [ Janet  Jan 06, 2018 ]
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crutchfield recommendation [ D  Dec 30, 2017 ]
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Just do!!! [ Sonny  Dec 27, 2017 ]
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Free bundled with purchase. [ Patrick  Dec 08, 2017 ]
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Value [ Rodney  Nov 27, 2017 ]
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Recommended by Crutchfield [ William  Nov 27, 2017 ]
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Was told I would need this for fit [ Michael  Nov 25, 2017 ]
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Crutchfield recommended this harness, so I'm trusting them that I need this to complete my radio installation project. [ Ram  Nov 07, 2017 ]
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makes it easier to install [ James  Nov 06, 2017 ]
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Crutchfield recommendation [ Jordan  Oct 23, 2017 ]
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Stops the blast from the subs when turning on the unit [ Daniel  Oct 16, 2017 ]
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Its needed for my project and the Price you cannot beat. [ Ernest  Oct 13, 2017 ]
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You said I needed it. [ Michael  Oct 08, 2017 ]
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Needed to eliminate pop [ alonso  Oct 04, 2017 ]
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Recommended equipment [ A Thomas  Oct 01, 2017 ]
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Must have item if one wishes to eliminate the popping sound, upon powering on, within an amplified system. Great choice for my '02 Explorer. [ Paul  Sep 28, 2017 ]
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This was required for adapting to my factory amp in my Ford Five Hundred to a new deck. [ DanielC  Sep 04, 2017 ]
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Came with kit. Must be needed for install [ BRIAN  Aug 27, 2017 ]
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Ease of installation. [ CHARLES  Aug 21, 2017 ]
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Recommended by other enthusiasts. [ carlos  Aug 10, 2017 ]
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If you don't replace your factory amp you need this. The amp needs 5 volts. The new radios send 12 volts ...this converts the voltage back to 5 amps. If you don't have this you will the power surge every time you turn the radio on [ Peter  Jul 04, 2017 ]
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Stop thumping from factory subwoofer. [ B  Jun 26, 2017 ]
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Discounted price [ GERARDO  Jun 11, 2017 ]
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Good item [ mitch  May 24, 2017 ]
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I didn't choose it, it was automatically added [ BRIAN  May 16, 2017 ]
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easy install for aftermarket stereo [ Karl  May 10, 2017 ]
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Recommended for installation [ David  May 07, 2017 ]
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Satisfies unique 5V power supply issue with Ford vehicles. [ Richard  May 01, 2017 ]
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2007 mustang needs [ E  Apr 17, 2017 ]
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Needed to correct the thump sound for my factory amplified speakers [ TUCKER  Apr 02, 2017 ]
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tech advice [ Steven Joseph  Mar 30, 2017 ]
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Helps [ Robert  Mar 26, 2017 ]
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Crutchfield info says that I need this for the factory amp to work, I trust their expertise, haven't steered me wrong before. [ darrell lee  Mar 24, 2017 ]
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Turns out my vehicle makes a popping sound when starting the vehicle after replacing the stock stereo. An excellent deal when combined with the stereo I purchased! Thank you Crutchfield. [ Jordan  Mar 08, 2017 ]
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Awesome [ Dean  Mar 07, 2017 ]
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it fits too [ greg  Mar 02, 2017 ]
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required [ Darrell  Mar 02, 2017 ]
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Recommend so I knew I would need it. [ Paul  Feb 25, 2017 ]
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Suggested for installation [ Mark Jason  Feb 25, 2017 ]
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apparently helps amp pop or something. [ lisa  Feb 17, 2017 ]
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Another item for that professional look [ William  Feb 08, 2017 ]
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So that I won't hear the loud sub woofer thump when the car stereo is turned on. [ Steven  Feb 08, 2017 ]
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Easy to install [ Robert  Feb 01, 2017 ]
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Supposed to fit wife's Thunderbird [ A  Jan 31, 2017 ]
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Fits my car [ Shannon  Jan 18, 2017 ]
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Came with install kit [ Daryl  Jan 13, 2017 ]
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Good product [ GARY  Jan 11, 2017 ]
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Suggestion from you [ wrhfl200  Dec 05, 2016 ]
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needed for installation [ Bryan  Nov 30, 2016 ]
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Required for install [ Daniel  Nov 29, 2016 ]
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Protect factory sub and amp from aftermarket HU turn on pop. Ford Escape 07 [ Donna  Nov 23, 2016 ]
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recommended by you [ Mark  Nov 22, 2016 ]
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Recommended by Crutchfield automatically. [ Daniel  Nov 16, 2016 ]
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I was told by a crutchfield agent that I would need this. [ gabriel  Nov 11, 2016 ]
A
Came with the offered kit. Didn't know this was even available. Love it! [ Jacob  Nov 08, 2016 ]
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Needed [ eric  Oct 30, 2016 ]
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This harness reduces the 12v vehicle to 5v which is needed by the subwoofer in order to eliminate the "pop" from the speakers when turning on your head unit. [ Charles  Oct 25, 2016 ]
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Recommended [ Mark A  Oct 24, 2016 ]
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no thump no problem [ Brian  Oct 24, 2016 ]
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Recommended to avoid amp thump. [ Floyd  Oct 09, 2016 ]
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Recommendation from Larry on chat [ Hugh  Sep 28, 2016 ]
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Recommended Choice and Free [ Keaton  Sep 27, 2016 ]
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Recommended by Crutchfield [ Roger  Sep 22, 2016 ]
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Proper installation. [ Jeffrey Jay  Sep 17, 2016 ]
A
The Crutchfield write up about upgrading our 2002 Ford Escape explained the need for this item. We had installed our aftermarket stereo & speakers and kept hearing a pop or thump from stock amp. Other reviewers reported it fixed the problem. Looking forward to installing this part. [ Carolyn  Sep 05, 2016 ]
A
To upgrade my factory speakers. [ Fernando  Sep 03, 2016 ]
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B/c I have a Ford with an amp. [ Jennifer  Sep 01, 2016 ]
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recommended by crutchfield [ Edward  Aug 29, 2016 ]
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recommended by expert [ C  Aug 28, 2016 ]
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Part of the kit. Not really sure what this does, but I guess I'll find out.... [ Charles  Aug 28, 2016 ]
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To eliminate amp noise [ Dustin  Jul 26, 2016 ]
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Included in installation kit [ John  Jul 24, 2016 ]
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To reduce the power-on thump. [ Ken  Jul 18, 2016 ]
A
This will eliminate the popping sound every time you turn the radio on when using an aftermarket head unit. [ Alex  Jul 12, 2016 ]
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i needed it [ Tena  Jul 03, 2016 ]
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suggested [ Michael  Jul 01, 2016 ]
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needed to install aftermarket radio in mustang convertible with factory amplifier [ Advance Auto Pa  Jun 28, 2016 ]
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For my truck [ G  Jun 26, 2016 ]
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Car kit [ ALAN  Jun 01, 2016 ]
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it fits my car and need it [ Roben  May 12, 2016 ]
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Because Crutchfield included for free with the Pioneer unit that I purchased. [ Robert  May 11, 2016 ]
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It was included with my car installation kit [ Donovan  Apr 29, 2016 ]
A
Insure installation goes smoothly, and it was no extra charge. [ Larry  Apr 26, 2016 ]
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needed to install [ Chester  Apr 20, 2016 ]
A
Supposed to silence thump using factory sub amp with new receiver. [ Thomas  Apr 18, 2016 ]
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Amazing costumer service [ Lizbeth  Apr 09, 2016 ]
A
New stereo makes speakers thump when turned on [ Karen  Apr 04, 2016 ]
A
Needed for install [ Don  Apr 01, 2016 ]
A
I just ordered to install aftermarket radio to replace my factory shaker 500 sistem so let's see. [ Javier  Apr 01, 2016 ]
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Free [ John E.  Mar 29, 2016 ]
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Fits my 2004 Ford Expedition [ VIN  Mar 25, 2016 ]
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Makes clean install [ Paul  Mar 21, 2016 ]
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Must have [ Edgar Enrique  Mar 17, 2016 ]
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reduces voltage to eliminate thump in radio [ George  Mar 17, 2016 ]
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WAS A RECOMENDED WITH HEAD UNIT I PURCHASED [ RAUL  Mar 15, 2016 ]
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Easy hookup [ JEFF  Mar 15, 2016 ]
A
i have a 06 mustang with the shaker 500 an with a aftermarket radio an when you turn key on an off you get a bump or pop from spreaker's I was hopeing you could fix it an now I know you can !!!! [ matthew  Mar 12, 2016 ]
A
One of the main reasons I shop Crutchfield. Free gear and easy install. Whoever thinks they can't install a car stereo, they are wrong. The simplified instructions Crutchfield provides is an absolute must have. Been shopping with them since 1991 (out of the catalog and mail back then). [ DWAYNE  Mar 02, 2016 ]
A
Fits my Ford F-150 [ Jeffrey  Feb 28, 2016 ]
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Needed for ford [ carl  Feb 26, 2016 ]
A
Item used to power factory subwoofer in Ford Escape [ ALEXI  Feb 26, 2016 ]
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have to have it to make evrything work right [ jason  Feb 22, 2016 ]
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Part of the package when I ordered the stereo. Works fine on my other identical install. [ Kevin S.  Feb 17, 2016 ]
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Used this to play DVD's while at car shows. [ Brian  Feb 17, 2016 ]
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Worked great [ Mark  Feb 15, 2016 ]
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it would help with the way your device works [ marvin  Jan 06, 2016 ]
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my expedition's subwoofer would not operate without it [ GERARD  Jan 05, 2016 ]
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You have to have this to hookup your sub/w [ Bobby  Dec 15, 2015 ]
SHOW MORESHOW LESS

4 questions already asked

Q
I'm installing this into a 2003 Ford Explorer. What do I wire the blue wire with the red stripe to? Is it another wire, and what color is it?
[ Tristan J.  Jul 12, 2016 ]
2 answers
A
Review your wiring diagram to find the Amp turn on wire coming from your factory radio going to the factory amp. This is the wire you would connect the blue wire with the red strip. I am not sure of what the color of wire would be in your vehicle as it is different than my son's mustang.
[ Concours14  Jul 13, 2016 ]
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.
[ Krissy  Jul 13, 2016 ]  Staff
Q
I received this and installed according to instructions when I purchased/installed a JVC KW-R910BT. Everything went great, but now (sometimes) I am getting a buzz with a clicking pattern from the factory subwoofer. It doesn't happen all the time but I am guessing that maybe this part is going bad? Anyone know what it sounds like if it is going bad other than a thump? I am not getting any thump.
[ Don  Jul 05, 2016 ]
2 answers
A
I haven't experienced that issue. So I cannot comment or speculate as to why that is happening. I did solder all the wires though when making the connections. I hope you figure it out.
[ Daniel  Jul 06, 2016 ]
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.
[ Krissy  Jul 06, 2016 ]  Staff
Q
I have a lincoln aviator that I'm replacing the front door speakers with components and amplifier, also adding a sub and amp. I'm not retaining the factory subwoofer. Do I need this part or is this only needed for the factory amp which I'm disabling?
[ Eric  May 28, 2016 ]
1 answer
A
For additional details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on how everything conections and what you will need for an installation in your vehicle.
[ Kenny  May 29, 2016 ]  Staff
Q
somebody who use this please tell me how to connect this item to Ford explorer 2002 ?
[ sachi  Mar 27, 2014 ]
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the install. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.
[ Krissy  Mar 28, 2014 ]  Staff

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