Customer Reviews

Name: Metra 70-2021 Amp Bypass Harness
Brand: Metra
SKU: 120702021
Rating: 4.5 (11 reviews)

Metra 70-2021 Amp Bypass Harness Connect a new car stereo and bypass the factory amp in select 2000-01 Chevy Monte Carlo and Impala models

MFR # 70-2021

11 reviews

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Metra 70-2021 Amp Bypass Harness

Trenten from Casey, IL on 10/10/2024

2000 Chevrolet Impala

Verified customer

Worked exactly as described. Easy plug and play.

Bose amp bypass

Guy from Texarkana, TX on 1/6/2024

Worked for bypassing my failed bose amp in my 2004 Silverado , had to change the wire pin locations in the connector , but worked great.

Pros: Worked great

Cons: None

Works for my 02 Yukon

Joshua from Clovis, NM on 3/21/2023

2002 GMC Yukon XL

Verified customer

works perfect, same cost as making my own and the work is already done

Amp Bypass

Frank from Englewood, FL on 11/14/2022

Verified customer

Used this to bypass stock amp in a 2002 Avalanche, just change some pins around and woolaa ! Best sound truck ever had, Thanks Moon @Crutchfield.

Pros: Crisp sound without stock amp

Cons: None

Metra 70-2021 Amp Bypass Harness

Steve from Wilbraham, MA on 4/22/2022

2001 Chevrolet Monte Carlo

Verified customer

Worked perfect as the factory amp had failed and was draining the battery, thus allows the radio to still work without the amp

Pros: Yes

Cleveland

Mark from Cleveland on 9/16/2021

2005 Chevrolet Equinox

Verified customer

For anyone looking for this plug for a 2005-2009 equinox, it is the proper physical plug. You will however need to switch the front and rear speaker wires, takes like 5 minutes with right tools. Delivers good sound without any crackling.

Pros: Good sturdy plug, fits good and snug.

Cons: No one makes this already plug and play for 2005-2009 equinox

Plug & Play ... literally

Crutchfield customer from Missoula, MT on 4/22/2021

2001 Chevrolet Tahoe

Verified customer

Plug & Play ... literally ... This worked on my 2001 Tahoe LT

5 of 5 found this helpful

Metra 70-2021 Amp Bypass Harness

Crutchfield customer from Lebanon, OH on 12/21/2019

2001 Chevrolet Monte Carlo

Verified customer

Worked perfectly very happy thanks

Pros: Super easy to install

Cons: None

1 of 1 found this helpful

Metra 70-2021 Amp Bypass Harness

David from Marshall, NC on 11/7/2017

Verified customer

Easy to use, works great

Pros: No problems to install

Cons: None

2 of 2 found this helpful

Must have item

Roy O. from Wisconsin on 10/25/2014

Wish I would have found this when I put the new radio in my car. The factory amp went out, so I had to cut and splice the input wires to the output wires. This would have saved me a ton of time, and would look a lot cleaner too.

Pros: Saves time, no cutting, you know the connections are correct

Cons: None

2 of 2 found this helpful

Not sure why this got sent to me.

Bob W from Shrewsbury, MA on 10/1/2013

2002 Pontiac Montana

Verified customer

Not sure why I got this. As far as I can see, I didn't need this part. If I do need, I don't know where it goes because there are no directions.

Crutchfield response on 10/2/2013

We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

1 of 5 found this helpful

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