Remove the speaker from your car – The first step is to remove the speaker from your car. This will allow you to measure the diameter accurately. To remove the speaker, you will need to remove the door panel or rear panel of your car.
Measure the outside diameter of the frame – After removing the speaker, you can measure the outside diameter of the frame. Use a tape measure to measure the distance from the outer edge of the speaker frame to the opposite edge. Measure the distance in millimeters.
Measure the diameter of the speaker cutout – The second measurement you need to take is the diameter of the speaker cutout. This will help you determine if the speaker is compatible with your car. Use the same tape measure to measure the distance between the inside edges of the speaker cutout. Measure the distance in millimeters.
Compare the two measurements – Now that you have both measurements, compare them. If the speaker cutout measurement is slightly smaller than the outer bezel measurement, it means that the speaker is compatible with your car.
Measure the depth of the speaker – In addition to measuring the diameter of the speaker, you should also measure the depth of the speaker. This will help you determine if the speaker will fit in the intended location in your car. To measure speaker depth, measure the distance from the outer edge of the speaker frame to the inner edge of the speaker cone. Measure the distance in millimeters.