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Scosche FGA Floating Ground Adapter

Connect a new car stereo in select older (pre-1995) vehicles with a common ground speaker system

Item # 142FGA

Find what Fits your vehicle

Item # 142FGA

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About the Scosche FGA Floating Ground Adapter

Dave Delamere

Add a high-power car stereo to your older Ford vehicle

You'd like to install a new stereo in your older vehicle, but your factory system was designed for a low-power radio with speakers that share a negative ground connection. Scosche's FGA floating ground adapter compensates for this setup, allowing you to connect your new stereo safely. You'll also enjoy your new stereo's higher power. Warranty: 1 year

What's in the box:

  • Floating ground adapter
  • Instructions

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Scosche FGA Floating Ground Adapter reviews

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34 reviews

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More details on the Scosche FGA Floating Ground Adapter

Stacey B.

Product Research


Floating Ground Adapter: The Scosche Floating Ground Adapter (FGAB) lets you install a high-power aftermarket stereo into many older 70s, 80s, 90s vehicles with a common ground or premium sound 5-wire speaker system.

Wire Code Chart:

Wire Color Function
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -
Green Left Rear Speaker +
Green/Black Left Rear Speaker -
Violet Right Rear Speaker +
Violet/Black Right Rear Speaker -
Black Ground
Note:  Please consult the Crutchfield Car Selector for your vehicle's compatibility.

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Customer Q&A

4 questions already asked

I need to hook up an older 8 Track to a new amp. Does this work in reverse where the common ground needs to be split out from the older unit to a modern amp?
[ JShin  Nov 10, 2021 ]
1 answer
This part will not work to install a floating ground radio to a modern amp. At the time of this post, we do not sell an adapter that will work. This could change in the future and I recommend contacting an advisor by calling 1-800-324-9695 to check
[ JASON  Nov 14, 2021 ]  Staff
I have an older car stereo by Clarion , where can I find out what the push buttons are for changing the time?
[ Karen  May 16, 2021 ]
1 answer
We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
[ Thomas  May 21, 2021 ]  Staff
Do you carry speakers that have to be clipped?
[ Amack  May 15, 2019 ]
1 answer
Hey Allen! I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question.
[ JESSICA  May 23, 2019 ]  Staff
what are the 2 wires on my connector purple and light green labeled Lcom and Rcom ?
[ Dennis  Jun 03, 2018 ]
1 answer
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.
[ KRISTINA  Jun 08, 2018 ]  Staff

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