Yes, you can change the blinker noise on your car. There are a few ways to do this, depending on what kind of car you have. If you have a newer car, there may be a setting in the infotainment system that will allow you to change the tone of the turn signal. If your car is older, or doesn't have an infotainment system, you can usually find the turn signal relay under the dash and swap it out for a different one. There are aftermarket options available that will allow you to change the sound of your turn signals.