Metra 70-2040 AMP Bypass Harness Installation instructions

Below you will find brief information for AMP Bypass Harness 70-2040. This harness is designed to bypass the factory amplifier in 2002-2004 Chevy Cavalier and Pontiac Sunfire vehicles that are equipped with an amplifier. The harness provides a direct connection for speaker wires, allowing you to install an aftermarket audio system without affecting the factory amplifier. The harness also includes a set of crossovers to protect the factory speakers from damage when bypassing the factory amplifier.

PDF

Document

70-2040

INSTALLATION

INSTRUCTIONS

2002-04 Chevy Cavalier

2002-04 Pontiac Sunfire

AMP Bypass Harness

This harness is to be used with the 2002-04

Chevy Cavalier and 2002-04 Pontiac Sunfire that are amplified. If you are not sure if the vehicle is amplified, look in the glove box for the RPO code list sticker. RPO codes list the options sand accessories that a particular vehicle has, usually as a 3 digit code. You should find a code U85 if the vehicle has an amplifier.

1-800-221-0932 www.metraonline.com

70-2040

INSTALLATION

INSTRUCTIONS

2002-04 Chevy Cavalier

2002-04 Pontiac Sunfire

AMP Bypass Harness

This harness is to be used with the 2002-04

1-800-221-0932 www.metraonline.com

70-2040

INSTALLATION

INSTRUCTIONS

2002-04 Chevy Cavalier

2002-04 Pontiac Sunfire

AMP Bypass Harness

This harness is to be used with the 2002-04

1-800-221-0932 www.metraonline.com

70-2040

INSTALLATION

INSTRUCTIONS

2002-04 Chevy Cavalier

2002-04 Pontiac Sunfire

AMP Bypass Harness

This harness is to be used with the 2002-04

1-800-221-0932 www.metraonline.com

70-2040

INSTALLATION

INSTRUCTIONS

2002-04 Chevy Cavalier

2002-04 Pontiac Sunfire

AMP Bypass Harness

This harness is to be used with the 2002-04

1-800-221-0932 www.metraonline.com

70-2040

INSTALLATION

INSTRUCTIONS

2002-04 Chevy Cavalier

2002-04 Pontiac Sunfire

AMP Bypass Harness

This harness is to be used with the 2002-04

1-800-221-0932 www.metraonline.com

70-2040

INSTALLATION

INSTRUCTIONS

2002-04 Chevy Cavalier

2002-04 Pontiac Sunfire

AMP Bypass Harness

This harness is to be used with the 2002-04

1-800-221-0932 www.metraonline.com

70-2040

INSTALLATION

INSTRUCTIONS

2002-04 Chevy Cavalier

2002-04 Pontiac Sunfire

AMP Bypass Harness

This harness is to be used with the 2002-04

1-800-221-0932 www.metraonline.com

FACTORY AMP LOCATIONS:

Drivers side of trunk behind the carpet

Wire Colors for Bypass Harness:

Yellow / Blue

Yellow / Black

Left Front Tweeter (+)

Left Front Tweeter (-)

Yellow / Red Right Front Tweeter (+)

Yellow / Orange Right Front Tweeter (-)

Green / Orange Left Rear Tweeter (+)

Green / Red

Black / Yellow

Left Rear Tweeter (-)

Right Rear Tweeter (+)

Black / Green Right Rear Tweeter (-)

The rest of the speaker wires are standard

Metra / EIA color code that can be found on the back of this package.

NOTE:

The factory amp has the crossover built in, when bypassing the factory amp be sure to use crossovers to protect the factory speakers.

FACTORY AMP LOCATIONS:

Drivers side of trunk behind the carpet

Wire Colors for Bypass Harness:

Yellow / Blue

Yellow / Black

Left Front Tweeter (+)

Left Front Tweeter (-)

Yellow / Red Right Front Tweeter (+)

Yellow / Orange Right Front Tweeter (-)

Green / Orange Left Rear Tweeter (+)

Green / Red

Black / Yellow

Left Rear Tweeter (-)

Right Rear Tweeter (+)

Black / Green Right Rear Tweeter (-)

The rest of the speaker wires are standard

Metra / EIA color code that can be found on the back of this package.

NOTE:

The factory amp has the crossover built in, when bypassing the factory amp be sure to use crossovers to protect the factory speakers.

FACTORY AMP LOCATIONS:

Drivers side of trunk behind the carpet

Wire Colors for Bypass Harness:

Yellow / Blue

Yellow / Black

Left Front Tweeter (+)

Left Front Tweeter (-)

Yellow / Red Right Front Tweeter (+)

Yellow / Orange Right Front Tweeter (-)

Green / Orange Left Rear Tweeter (+)

Green / Red

Black / Yellow

Left Rear Tweeter (-)

Right Rear Tweeter (+)

Black / Green Right Rear Tweeter (-)

The rest of the speaker wires are standard

Metra / EIA color code that can be found on the back of this package.

NOTE:

The factory amp has the crossover built in, when bypassing the factory amp be sure to use crossovers to protect the factory speakers.

FACTORY AMP LOCATIONS:

Drivers side of trunk behind the carpet

Wire Colors for Bypass Harness:

Yellow / Blue

Yellow / Black

Left Front Tweeter (+)

Left Front Tweeter (-)

Yellow / Red Right Front Tweeter (+)

Yellow / Orange Right Front Tweeter (-)

Green / Orange Left Rear Tweeter (+)

Green / Red

Black / Yellow

Left Rear Tweeter (-)

Right Rear Tweeter (+)

Black / Green Right Rear Tweeter (-)

The rest of the speaker wires are standard

Metra / EIA color code that can be found on the back of this package.

NOTE:

The factory amp has the crossover built in, when bypassing the factory amp be sure to use crossovers to protect the factory speakers.

FACTORY AMP LOCATIONS:

Drivers side of trunk behind the carpet

Wire Colors for Bypass Harness:

Yellow / Blue

Yellow / Black

Left Front Tweeter (+)

Left Front Tweeter (-)

Yellow / Red Right Front Tweeter (+)

Yellow / Orange Right Front Tweeter (-)

Green / Orange Left Rear Tweeter (+)

Green / Red Left Rear Tweeter (-)

Black / Yellow Right Rear Tweeter (+)

Black / Green Right Rear Tweeter (-)

The rest of the speaker wires are standard

Metra / EIA color code that can be found on the back of this package.

NOTE:

The factory amp has the crossover built in, when bypassing the factory amp be sure to use crossovers to protect the factory speakers.

FACTORY AMP LOCATIONS:

Drivers side of trunk behind the carpet

Wire Colors for Bypass Harness:

Yellow / Blue

Yellow / Black

Left Front Tweeter (+)

Left Front Tweeter (-)

Yellow / Red Right Front Tweeter (+)

Yellow / Orange Right Front Tweeter (-)

Green / Orange Left Rear Tweeter (+)

Green / Red Left Rear Tweeter (-)

Black / Yellow Right Rear Tweeter (+)

Black / Green Right Rear Tweeter (-)

The rest of the speaker wires are standard

Metra / EIA color code that can be found on the back of this package.

NOTE:

The factory amp has the crossover built in, when bypassing the factory amp be sure to use crossovers to protect the factory speakers.

FACTORY AMP LOCATIONS:

Drivers side of trunk behind the carpet

Wire Colors for Bypass Harness:

Yellow / Blue

Yellow / Black

Left Front Tweeter (+)

Left Front Tweeter (-)

Yellow / Red Right Front Tweeter (+)

Yellow / Orange Right Front Tweeter (-)

Green / Orange Left Rear Tweeter (+)

Green / Red Left Rear Tweeter (-)

Black / Yellow Right Rear Tweeter (+)

Black / Green Right Rear Tweeter (-)

The rest of the speaker wires are standard

Metra / EIA color code that can be found on the back of this package.

NOTE:

The factory amp has the crossover built in, when bypassing the factory amp be sure to use crossovers to protect the factory speakers.

FACTORY AMP LOCATIONS:

Drivers side of trunk behind the carpet

Wire Colors for Bypass Harness:

Yellow / Blue

Yellow / Black

Left Front Tweeter (+)

Left Front Tweeter (-)

Yellow / Red Right Front Tweeter (+)

Yellow / Orange Right Front Tweeter (-)

Green / Orange Left Rear Tweeter (+)

Green / Red Left Rear Tweeter (-)

Black / Yellow Right Rear Tweeter (+)

Black / Green Right Rear Tweeter (-)

The rest of the speaker wires are standard

Metra / EIA color code that can be found on the back of this package.

NOTE:

The factory amp has the crossover built in, when bypassing the factory amp be sure to use crossovers to protect the factory speakers.

Hello! I am an AI chatbot specifically trained to assist you with the Metra 70-2040 Installation instructions. I have thoroughly reviewed the document and can help you locate the exact information you need or explain the content in clear and simple terms. Whether you’re looking for guidance on specific features, troubleshooting steps, or general usage, feel free to ask your questions. The more details you provide about your concerns or needs, the more accurately and effectively I can assist you!

Show related prompts

Assistant typing

Assistant is out of keyboard. Please, try again later.

Key features

Bypasses factory amplifier
Direct connection for speaker wires
Includes crossovers for speaker protection
Designed for 2002-2004 Chevy Cavalier and Pontiac Sunfire
Compatible with amplified vehicles
Allows aftermarket audio system installation
Provides a clean and easy installation

Frequently asked questions

An AMP Bypass Harness is a specialized wiring adapter designed to bypass the factory amplifier in a vehicle, allowing you to install an aftermarket audio system without affecting the factory amplifier. This harness provides direct connections for speaker wires, ensuring a clean and seamless integration of your new audio system.

You may need an AMP Bypass Harness if you want to install an aftermarket audio system in a vehicle that has a factory amplifier. The harness allows you to bypass the factory amplifier and connect your aftermarket system directly to the speaker wires, ensuring proper sound quality and compatibility.

To check if your vehicle has an amplifier, look for the RPO code list sticker in the glove box. The RPO code for an amplifier is U85. If the sticker lists U85, then your vehicle has an amplifier.