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Metra 70-6512

Wiring Harness for 2002-2004 Dodge Ram with Infiniti System

In Stock

List price $39.99


with warranty

You Save: $20.00 (50.01%)

Arrives by Monday, Aug. 4 to zip 98109

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In Stock

Arrives by Mon, Aug. 4

Designed to be used for 2002-2004 Dodge Ram Trucks this harness is used to Bypass the Factory Infinity Sound System in vehicles without the Handsfree capable option. You will want to check your rear view mirror for an icon of a telephone. If this icon is not present the Metra 70-6512 is the harness for you.

For Vehicles with the Telephone Icon, please purchase Metra 70-6510

Product Features:
  • 204" Long amplifier bypass harness
  • One 22-pin power plug, one 18-pin amplifier plug
  • Harness is plugged in at the factory amplifier and ran to the location of the aftermarket radio or the aftermarket amplifier
  • For 2002-2005 Dodge Ram (Infiniti System)
  • Check the Product Instructions to see basic instructions and compatibility list for the Metra 70-6512
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
  • Yellow 12V Constant
  • Red 12V Accessory
  • Black - Ground
  • Orange Dash Light Dimmer/Illumination
  • Green Left Rear Speaker (+)
  • Green with Black Stripe Left Rear Speaker (-)
  • White Left Front Speaker (+)
  • White with Black Stripe Left Front Speaker (-)
  • Purple Right Rear Speaker (+)
  • Purple with Black Stripe Right Rear Speaker (-)
  • Gray Right Front Speaker (+)
  • Gray with Black Stripe Right Front Speaker (-)

Compatible Vehicles

Compatible Vehicle Make
Allows you to view only items that are compatible with your vehicle's make. Does not guarantee that it will work with your vehicle year or model.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

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Average Attribution Rating



Orrville, Oh


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

June 7, 2012

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.

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Metra 70-6512