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Metra 70-6510 Amp Bypass Harness

Connect a new car stereo and bypass the factory amp in select 2004-05 Dodge Ram trucks with Infinity

Item # 120706510

The Metra 70-6510 harness enables you to install a new car stereo in your Ram truck.

Find what Fits your car

The Metra 70-6510 harness enables you to install a new car stereo in your Ram truck.

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Item # 120706510

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About the Metra 70-6510 Amp Bypass Harness

Metra 70-6510

The Metra 70-6510 harness enables you to install a new car stereo in your Ram truck. It uses a "jumper" to bypass the factory Infinity amplifier, which means you don't have to run new speaker wire from your new radio to your car's speakers — this saves you a lot of time on the installation, so you can start enjoying your music sooner.

Metra 70-6510

The Metra 70-6510 harness enables you to install a new car stereo in your Ram truck. It uses a "jumper" to bypass the factory Infinity amplifier, which means you don't have to run new speaker wire from your new radio to your car's speakers — this saves you a lot of time on the installation, so you can start enjoying your music sooner.

Since you didn't have to cut off your car's original radio connector, it's easier to put the factory radio back in when you sell your vehicle or return it at the end of the lease. Just plug the factory radio back in and keep the aftermarket stereo. Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this harness is compatible with your vehicle. Warranty: 1 year.

READ LESS

What's in the box:

  • 8" Power/ground harness
  • 16.5' Amplifier bypass harness
  • Installation Instructions
MFR #70-6510

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Metra 70-6510 Amp Bypass Harness reviews

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Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Pendleton, OR on 9/17/2019

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Just plug and play makes installing a lot quicker

Pros:

Cons:

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Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Spring Hill, FL on 9/4/2019

2005 Dodge Ram 1500

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Awesome harness. Perfect fit. Easy install.

Pros:

Cons:

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0 of 0 found this helpful

2005 Dodge 3500

Crutchfield customer from New Paris, OH on 9/3/2019

2011 Chevrolet Traverse

Verified customer (What's this?)
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Worked very nice. Annoying having to bypass amp, but glad this harness was available. Plug in and wire to radio harness. Super easy.

Pros:

Cons:

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Happy Camper

Crutchfield customer from Waldorf, MD on 8/11/2019

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Crutchfield instructions were very clear, up to the point of removing the wiring connector from existing amp in my '04 Dodge Ram 1500 (infinity Sound System). You may be assisted by a pair of right angle needle nose pliers to pinch the release pin on the wiring connector on the amp, as there is very little clearance for your hands. Beyond that, the 70-6510 Bypass Harness worked perfecctly! I am happy that I am mow able to use my Kenwood system with bluetooth for my smartphone (that's what I was really after). I will be looking to Crutchfield again to add subwoofer system in the not-too-distant future. Thanks Crutchfield!

Pros: Removal/Installation Instructions were very useful. The wires on the harness must have been 15 feet; far more than needed for the application.

Cons: The Removal/Installation Instructions stopped just short of HOW to remove the factory harness from the amp. It provided all the steps to get to the amp and remove the harness, but did not describe the locking release tab that must be depressed to pull the connector out. Additional tools may be required to accomplish this.

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Metra 70-6510 Amp Bypass Harness

Joseph from Ellicott City, MD on 8/7/2019

2005 Dodge Ram 1500

Verified customer (What's this?)
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Used it to bypass factory amplifier . Just what I needed .

Pros:

Cons:

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Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Peachtree City, GA on 5/16/2019

2005 Dodge Ram 2500

Verified customer (What's this?)
Verified employee purchase (What's this?)

Does what is advertised - connectors are wired correctly. Attached wires were plenty long enough for the application. I wish that the item was offered in two or three amounts of wire lengths. I currently have approx. 35' of wires left over.

Pros: Everything fits. Wired correctly. Sufficient length of wire to accomplish the project.

Cons: Too much wire for my application. Product should be offered in multiple items with different wire lengths.

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Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Safety Harbor, FL on 3/21/2019

2005 Dodge Ram 2500

Verified customer (What's this?)
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Perfect fit with ample wire to run leads anywhere.

Pros: Fit and function flawless

Cons: Not all wires are labeled, direction available online were not complete, had to Google part # to find what unlabeled wire were for.

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Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Fort Madison, IA on 3/18/2019

2004 Dodge Ram 1500

Verified customer (What's this?)
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The product came fully ready to install on the 2004 Ram Pickup. Worked great, plug and play. Service was great. Would purchase again!

Pros:

Cons:

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Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Twin Lake, MI on 3/12/2019

2005 Dodge Ram 1500

Verified customer (What's this?)
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Made the install easy and semless

Pros:

Cons:

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Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Cottageville, SC on 2/27/2019

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I was impressed with the quality and the help when ordering this harness

Pros:

Cons:

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Careful

Robert from Las Vegas, NV on 2/4/2019

2005 Dodge Ram 2500

Verified customer (What's this?)
Verified employee purchase (What's this?)

Make sure you have the amp, you can't just rewire the harness they supplied if you don't, my mistake but a big pain if you're looking for plug and play

Pros: Easy if you know what you've got

Cons: Not easy if you were wrong

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Metra 70-6510

Crutchfield customer from Greentown, IN on 1/20/2019

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Works great way to much wire only need 2feet not 17feet then you can lower the price.

Pros: Works great

Cons: To much wire

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Metra 70-6510 Amp Bypass Harness

Tim from Mckeesport, PA on 12/27/2018

2004 Dodge Ram 1500

Verified customer (What's this?)
Verified employee purchase (What's this?)

Great and very simple to wire in, great delivery time and no hassle!

Pros: Very easy to wire in

Cons: None!

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0 of 0 found this helpful

Metra 70-6510 Amp Bypass Harness

Ron from Bradford, PA on 12/16/2018

2005 Dodge Ram 1500

Verified customer (What's this?)
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Perfectly done bypass harness made the install of my new head unit a breeze. Crutchfield makes it even easier by knowing exactly what is needed to do it yourself.

Pros:

Cons:

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Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Decatur, TX on 12/1/2018

2004 Dodge Ram 1500

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Easy to hook up with great support!

Pros:

Cons:

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Metra 70-6510 Amp Bypass Harness

Lawrence from Roswell, GA on 7/13/2018

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Easy to install. Absolutely the perfect solution for installing a new sound system.

Pros:

Cons:

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Boom!

Rob from Sand Springs, OK on 6/21/2018

Verified customer (What's this?)
Verified employee purchase (What's this?)

Worked great. Easy instructions. I had wired my subs to the rear speakers using a line output converter, but wasn't satisfied with the results. Once I bypassed the factory amp, My sound went through the roof. Due to Crutchfield's amazing and knowledgeable customer service, it was the right harness for my truck which was a difficult year to find correct parts for.

Pros: Nothin' but positive.

Cons: Other than where dodge put the factory amp.......

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1 of 1 found this helpful

Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Tacoma, WA on 5/22/2018

2005 Dodge Ram 2500

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Didn't understand at first, called customer tech support, guy was very nice and helpful.

Pros:

Cons:

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0 of 0 found this helpful

Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Savage, MN on 5/11/2018

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Just what I needed, a more too long for my application, but that's better than the alternative.

Pros:

Cons:

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0 of 0 found this helpful

Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Dougherty, IA on 4/27/2018

2005 Dodge Ram 2500

Verified customer (What's this?)
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Wires were a bit long but worked very well

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Great set up.

Crutchfield customer from Hood River, OR on 3/25/2018

2005 Dodge Ram 2500

Verified customer (What's this?)
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works great for my 05 ram with Infinity. actually the only one that I found that works with Infinity. Crutchfield tech. guys are great.

Pros:

Cons:

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0 of 0 found this helpful

Metra 70-6510 Amp Bypass Harness

Guy from New Albany, IN on 2/18/2018

2005 Dodge Ram 1500

Verified customer (What's this?)
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Crutchfield sure made it easy. Worked great.

Pros: Easy install.

Cons: None

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0 of 0 found this helpful

Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Middlebry Ctr, PA on 10/28/2017

2005 Dodge Ram 2500

Verified customer (What's this?)
Verified employee purchase (What's this?)

Worked excellent to bypass the factory amp on my 2005 Ram 2500. Crutchfield provided very helpful instructions. The biggest pain in was getting the factory harness disconnected from the amp. Requires quite a bit of dissambly of the dash, but that has nothing to do with the quality and ease of use of this harness.

Pros: Make installation of a new head unit easy.

Cons: Lots of excess wire.

Crutchfield response on

0 of 0 found this helpful

Metra 70-6510 Amp Bypass Harness

Crutchfield customer from Massachusetts on 9/26/2017

2004 Dodge Ram 1500

Verified customer (What's this?)
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Installed a new head unit on my 04 ram 1500. Worked well and easy to install.

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Metra 70-6510 Amp Bypass Harness

James from Raleigh, NC on 9/20/2017

2005 Dodge Ram 2500

Verified customer (What's this?)
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Worked great to bypass the factory amp on my 2005 Dodge Ram 2500. Intructions I received from Crutchfield were easy to follow. The hardest part is getting the harness disconnected from the factory amp due to its location.

Pros:

Cons:

Crutchfield response on

1 of 1 found this helpful

Metra 70-6510 Amp Bypass Harness

David from Port deposit, Md on 8/27/2017

2005 Dodge Ram 3500

Verified customer (What's this?)
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Works great and a very clean way to bypass the amp.

Pros: Easy install

Cons: Amp was a pain to get to, not the harness fault.

Crutchfield response on

0 of 0 found this helpful

Works great.

Dan from Clare, MI on 6/1/2017

2005 Dodge Ram 1500

Verified customer (What's this?)
Verified employee purchase (What's this?)

If your lucky enough to get one of the few Dodges where the CHTO-02 does not work or want to use the full potential of your after market front door and dash speakers then this is a must. I would recommend complete removal of the amp when using this product since it will give you move room to run the wires and make the connections. Also use zip ties to hold the connectors together since they don't appear to snap and lock into each other. Color codes for the 05 Ram 1500 are as follows (may not use all): Door Speakers Left Front - White (+)/ White Black (-) Right Front - Grey (+)/ Grey Black (-) Left Rear - Green (+)/ Green Black (-) Right Rear - Purple (+)/ Purple Black (-) Dash Speakers Left - Yellow Blue (+)/ Yellow Black (-) Center - Brown White (+)/ Dark Blue Pink (-) Right - Yellow Red (+)/ Yellow Orange (-) Sub woofer - Green White (+)/ White Red (-)

Pros: Easy to use. Allows for full use of 2 or 3 way front door and dash speakers.

Cons: Amp is hard to remove. Tight space if amp is left in place for harness connections and wire run. Instructions are quite sparse, IE none for the speaker wire color codes unless you look up a different model vehicle.

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9 of 10 found this helpful

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More details on the Metra 70-6510 Amp Bypass Harness

Stacey B.

Product Research

Features

Compatibility: The Metra 70-6510 is an amplifier bypass harness for 2004-2005 Dodge Ram trucks with Infinity factory amplifier. In addition to the amplifier bypass harness, a power harness is also included for your aftermarket head unit.

  • 2004 Dodge Ram SRT-10 with hands-free and Infinity sound system (must have a telephone symbol on the mirror)
  • 2004 Dodge Ram (non SRT-10) with Infinity sound system
  • 2005 ALL Dodge Rams with Infinity sound system

Wire Code Chart:

(Power Harness)

Wire Color Function
Yellow +12 Volt Constant
Red +12 Volt Accessory
Orange Illumination
Black Ground

(Amplifier Bypass Harness)

Wire Color Function
Green Left Rear Speaker +
Green/Black Left Rear Speaker -
Violet Right Rear Speaker +
Violet/Black Right Rear Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -
White Left Front Speaker +
White/Black Left Front Speaker -
Yellow/Blue Left Front Tweeter (+)
Yellow/Black Left Front Tweeter (-)
Yellow/Red Right Front Tweeter (+)
Yellow/Orange Right Front Tweeter (-)

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
It was a fit for my Dodge Ram [ Kristie  Jun 02, 2019 ]
A
You have to bypass stock amp when using aftermarket stereo. [ Colin  Jan 27, 2019 ]
A
Needed amp bypass [ Dawson  Jan 17, 2019 ]
A
Not sure if needed but I'd rather have than not [ Joseph  Jan 13, 2019 ]
A
Factory amp in the dodge, and don't want to add new speaker-wire until I put the new amp and separates in, this will get me by until that time come [ ROBERT G  Jan 08, 2019 ]
A
Again, I was advised to order it [ John  Dec 23, 2018 ]
A
Need to install aftermarket Pioneer radio in 2005 Ram 1500 with infinity 7spk system. [ charles  Aug 12, 2018 ]
A
In a 2005 Ram 2500 you have to bypass the factory amp for certain speakers to work [ Ben  Mar 05, 2018 ]
A
Infinity system in the truck [ Mark  Jan 07, 2018 ]
A
Replaced the head unit in my truck. [ Jeremey  Aug 25, 2017 ]
A
Tried using the CHTO-02 interface which did not work with my truck although it was listed as compatible. Went this route with new speakers. [ James  Jun 02, 2017 ]
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