1. Identify the Cut Wires:
- Locate the wiring harness where the radio should be connected.
- Identify the cut wires and separate them into two groups: power/ground wires and speaker wires.
2. Check Wiring Harness Plugs:
- Inspect the wiring harness plugs for any damage or missing pins.
- If necessary, replace the damaged harness plugs.
3. Wiring Diagram:
- Obtain the wiring diagram for your specific vehicle model. This will help you identify the correct wiring connections.
4. Connect Power and Ground Wires:
- Connect the power wire (usually red) from the aftermarket stereo to the matching power wire on the vehicle's wiring harness.
- Similarly, connect the ground wire (usually black) from the stereo to the ground wire on the harness.
5. Connect Speaker Wires:
- Identify the speaker wire pairs (usually four wires: front left, front right, rear left, and rear right).
- Match the speaker wires from the stereo to the corresponding wires on the vehicle's harness based on the wiring diagram.
6. Connect Antenna:
- If your aftermarket stereo has an AM/FM antenna input, connect it to the antenna wire in the wiring harness.
7. Test the System:
- Once all connections are made, turn on the aftermarket stereo. Ensure that the power comes on and the speakers produce sound.
It's recommended to consult the wiring diagram and vehicle-specific installation instructions provided with the aftermarket stereo to ensure accurate connections. Additionally, if you are not confident in your electrical skills, it's best to seek assistance from a professional car audio installer to ensure proper and safe installation.