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Metra 70-1618 Receiver Wiring Harness

Connect a new car stereo in select 1975-84 Volkswagen and Audi vehicles

Item # 120701618

This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical...

Read more from Crutchfield writer, Jim R.

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$11.99

About the Metra 70-1618 Receiver Wiring Harness

Metra 70-1618 Receiver Wiring Harness

This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical system.

Metra 70-1618 Receiver Wiring Harness

This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical system.

First, attach the color-coded wires on your Crutchfield-supplied harness to the wires from your new stereo. If you're not using a soldering iron, we recommend that you purchase some wire connectors to secure the connections. Check out our handy article on three ways to connect the wiring harness here.

Now, once this harness is connected to your new stereo, you'll be able to plug right into your car's factory radio connector. This harness saves installation time since you won't have to cut factory wires individually, and this also enables you to re-install the factory radio if needed. A detailed instruction sheet comes with the harness. Warranty: 60 days.

Please read this important note: This harness may not contain provisions for every wire needed to complete your installation, and it will not accommodate special navigation, video, or factory steering wheel control connections. You will need a special adapter if you want your factory steering wheel audio controls to work with your new stereo.

Connections:

Note: The 12V switched power lead may not be present in your car. If not, and your receiver requires a switched 12V lead (most do), run a wire to an appropriate fused switched circuit. This harness does not include rear speaker wires. It may be necessary to either splice your receiver's rear speaker wires to existing wires (if present), or run new rear speaker wires if you want to use rear speakers. See "Accessories" for speaker wire.

  • 12V constant power
  • chassis ground
  • power antenna turn-on
  • dimmer
  • left front speaker +/-
  • right front speaker +/-
READ LESS

What's in the box:

  • 7.5" Power/ground harness
  • 7.75" Left front speaker harness
  • 7.75" Right front speaker harness

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More details on the Metra 70-1618 Receiver Wiring Harness

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Features

Crutchfield Wiring Harness: Crutchfield wiring harnesses prevent you from having to cut your vehicle's factory radio plug when replacing your factory radio with an aftermarket head unit. Simply solder or crimp the Crutchfield wiring harness to your aftermarket head unit's harness (solder & crimps not included), plug the aftermarket head unit's plug into the rear chassis of the aftermarket head unit, and plug the Crutchfield wiring harness into your vehicle's factory radio plug.

Note: Installation tools, hardware, & accessories are not included & sold separately. Please see the Accessories tab for recommendations & availability.

Wiring Notes: If the Crutchfield wiring harness is not equipped with a ground wire, you will need to ground the aftermarket head unit's ground wire to the metal chassis of your vehicle. Some vehicle's may require you to bypass the vehicle's factory amplifier (in another location from factory radio) or hardwire certain connections. If your vehicle is equipped with factory steering wheel controls, an additional adapter is required & sold separately.

Wire Code Chart:

(Power/Ground Harness)

Wire Color Function
Yellow +12 Volt Constant
Black Chassis Ground
Blue Power Antenna
Orange/White Dimmer

(2 Speaker Harnesses - Left Front & Right Front)

Wire Color Function
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -

No Switched Power: The wiring harness does not include a 12-volt switched wire. The 12-volt constant & 12-volt switched leads of your aftermarket head unit's harness can both be wired to the Yellow wire of this harness, or your vehicle's fuse block may be used for a 12-volt switched source.

The Crutchfield Car Selector: Please visit the Crutchfield Car Selector for your specific type of vehicle.

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Recommended by your system [ Christopher  Jul 10, 2018 ]
A
It came free [ Leia  Feb 10, 2018 ]
A
Believe it will fit my 1991 BMW 318IS to assist with install of new radio [ Rodney  Aug 06, 2016 ]

1 question already asked

Q
The Metra 70-1618 wiring harness is for the front speakers only. Is there a harness for the rear speakers? 1984 Jetta Coupe.
[ Don  Sep 21, 2016 ]
1 answer
A
Thanks for your question. This harness does not include rear speaker wires. It may be necessary to either splice your receiver's rear speaker wires to existing wires (if present), or run new rear speaker wires if you want to use rear speakers. If you have further questions I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat.
[ Kenny  Sep 23, 2016 ]  Staff

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