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Metra 70-6512

Power and Amplifier Bypass Harness for select 2002-2004 Ram 3500 / 2500 / 1500

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• Amplifier bypass harness for select 2002-2004 Ram 3500 / 2500 / 1500
• 17 ft. amplifier bypass harness with 18-pin connector
• Also includes 8" power harness with 22-pin connector
• Color coded wires with printed labels for easy installation

See compatible vehicles Learn more about the met-706512
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List price $54.99
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$48.99

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Description


Metra brand icon

Authorized dealer


Metra 70-6512

The 70-6512 harness is designed for the SRT10 trim package without the hands free capable option. The way to tell if the vehicle has hands free option is to look at the rear view mirror and see if it has an icon of a telephone on it. If there is no icon this harness will work. On the SRT-10 trim package with the hands free capable option and the 2004 Dodge Ram non-SRT trim packages please refer to the 70-6510 amplifier bypass harness.


Product Features:

  • Compatible with select 2002-2004 Ram 3500 / 2500 / 1500
  • 17 ft. amplifier bypass harness with 18-pin connector
  • Also includes 8" power harness with 22-pin connector
  • Plugs directly at the factory amplifier
  • Can be routed to the location of the aftermarket stereo/amplifier
  • Check the Instruction Paper for the Metra 70-6512 installation
  • Color coded wires with printed labels for easy installation
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Wiring Connections:

  • Yellow with Blue - Left Front Tweeter (+)
  • Yellow with Black - Left Front Tweeter (-)
  • Yellow with Red - Right Front Tweeter (+)
  • Yellow with Orange - Right Front Tweeter (-)

Notes: The rest of the wires are standard Metra/EIA color code.

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 1992 Cadillac DeVille is not compatible. Change vehicle or See list of compatible similar products


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Item Details


Manufacturer:

Model Number:

70-6512

Weight:

1.60lbs

Internal SKU:

met-706512

Internal Product ID:

12686

Customer Ratings & Reviews


Metra 70-6512 thumbnail image

5 star
71%
4 star
14%
3 star
14%
2 star
0%
1 star
0%



Durability
4.5
Value
4.3
Features
4
Design
4.5
Usability
3.8

Customer Reviews

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Like this product

It made everything a lot easier and it went a lot faster did not cost that much I would recommend

By Mike on April 1, 2016

31 found this helpful


Good product if right for application--aftermarket radio AND amp.

I bought it to bypass factory amplifier and maintain factory head unit, but it is designed to be used with aftermarket head unit AND amplifier. The title is a little deceiving and the instructions are marginal so I will try to clarify them.

This harness will supply power and grounds only to the aftermarket head unit and provide connection (at the oe amp connector) to the factory speaker wires that go through the tight door jamb connectors. These leads are supposed to hook to your amp outputs.

The problem with this is the factory wiring to the speakers is very small (20 ga.) and isn't really suited to aftermarket speakers. I switched terminals to oe radio connector to allow speaker level outputs from oe head unit into aftermarket amp and ran bigger speaker wiring--big pain and need for wiring schematic and patience.

Would have been easier to cut wires but wanted to leave factory harness intact. Worked though and factory head unit powers aftermarket amp and speakers quite nicely. If used with aftermarket head unit and amp you will need RCA cables to go from head unit output to amp input in addition to this harness. You could also hook the speaker leads in this harness to your aftermarket head unit speaker outputs and power your speakers directly with the head unit and no amplifier.

By Matt on June 7, 2012

33 found this helpful


By Romell on October 8, 2023 Checkmark Icon Verified purchase

22 found this helpful


By Malcolm on August 26, 2023 Checkmark Icon Verified purchase

21 found this helpful


By Harrison on December 29, 2024 Checkmark Icon Verified purchase

1 found this helpful


By Mark on July 5, 2025 Checkmark Icon Verified purchase


fit great

fit was great easy install after gaining access to the factory amp wires labeled nicely easy to work with

By michael on April 18, 2025 Checkmark Icon Verified purchase



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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.