How to change Emission Color in Script at specific time!

Questions & Answers
1

So I have Intro in my game and there is a car driving and after some time it stops. The thing is, lights on the car are on (Emission). So of course when car stops, you turn off the lights, so I need my lights to turn off (Emission).
Here how it looks like on my car - Imgur: The magic of the Internet
So I need this emission to turn black exactly when the Audio Source Sound turns off the car.

2

public Material material;

void Start{
    material.DisableKeyword("_EMISSION");
}
void Update{
    material.EnableKeyword("_EMISSION");
}

To enable emission at a specific time:

void Start{
    material.DisableKeyword("_EMISSION")
}
void Update{
    if (trigger) {
        material.EnableKeyword("_EMISSION")
    {
}

Put Emission on and deselect the material before play testing.