2003 Buick Century Stereos

Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

GM Genuine Parts Wiring Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These relays help connect or disconnect power to a vehicle accessory when it receives a low voltage signal from a switch. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Metra Electronics Car Stereo Wire Harness: Aftermarket Radio Wire Harness for Non Amplified Models, AAPWHGM2. N

Metra CF-WHGM4 radio wire harness used when replacing the OEM radio with an Aftermarket radio. Harness wires up to the aftermarket radio and directly plugs into the Oem radio harness for a quick and easy installation solution. EAI color coded for easy match up to aftermarket radio harness. Harness fits General Motors 1994-2005 models.

Metra AAPWHGM4 aftermarket radio wire harness for select General Motors 1994-2003 models. Install a new car radio faster with this wiring harness that plugs right into the vehicle’s connectors, allowing you to hook up the radio into the vehicle’s electrical system. On one side, the wiring harness is color-coded with wires that you’ll connect or solder into the aftermarket radio/receiver. The other side has a vehicle-specific adapter that connects directly into the original radio connectors for a quicker installation without having to cut each of the wires. Keep in mind that you may need additional parts to complete your installation, including a dash kit, antenna adapter, and, depending on your vehicle, a special interface adapter to retain audio controls on your steering wheel or other important vehicle functions like navigation, video, and more. Look up your vehicle for more information.

Metra AAP555GM installation kit replaces the OEM radio with an aftermarket radio for General Motors 1995 to 2012 models. This kit replaces the OEM radio and allows an aftermarket radio to be installed in the factory radio locations. This stereo installation kit has been engineered to help you install a 2 inch tall (Single-DIN) or a 4 inch (Double DIN) aftermarket radio into the original vehicle dashboard, making radio replacement simple. The dash kit is designed to match the original look and feel of the vehicle dashboard. Installing an aftermarket radio can upgrade the sound quality and provide additional features the original factory radio could not offer but requires this dash kit to make it fit.

Metra AAP444GM DIN aftermarket radio installation kit for select General Motors 1982-2005 models. This kit replaces the OEM radio and allows an aftermarket radio to be installed in the factory radio locations. This stereo installation kit has been engineered to help you install a 2 inch tall (Single-DIN) aftermarket radio into the original vehicle dashboard, making radio replacement simple. The dash kit is designed to match the original look and feel of the vehicle dashboard. Installing an aftermarket radio can upgrade the sound quality and provide additional features the original factory radio could not offer but requires this dash kit to make it fit. This kit is designed to offer the installer a great number of mounting depth alternatives. The kit will create half inch RECESSED/ FLUSH/ half inch EXTENDED and 1 inch EXTENDED applications as well as an infinite number of depth provisions between these locations.