There are a few ways to measure the size of your car speakers. You can use a product like Harman Kardon or Oppo A8, which have an attached measuring tape. Another way is to buy a speaker size chart from a retailer like Amazon or Best Buy.
There is no one-size-fits-all answer to this question, as the size of the hole will vary depending on the speaker’s type and design. However, some tips on how to cut a hole for a 6.5 speaker include using a jigsaw or a saw, using a drill bit that is smaller than the speaker’s mounting hole, or using a hole saw.
There is no definitive answer to this question as it depends on the size and type of car you are purchasing. However, typically you will need at least 3 speakers for a car with a CD player or cassette player, and 6 speakers for a car with an audio system.