When you purchase car speakers they come with front and back speakers so 4 in total right?

Most often they are sold in pairs. You could very well have different sizes in front than the back, that is very typical. You can use a site like crutchfield.com to find out exactly what sizes you need.

Your first problem is best buy, go to crutchfield.com. I bought all my car audio equipment from there, they have good stuff and offer support by expert advisors and off step by step instructions for your specific car. But yeah the speaker you're looking at should say front or back and if it comes with 2 or 4.

depends on quantity in the box, usually a pair (2) some vehicles have 4, 6, 8 speakers -depends on make/model and options Dodge Chrysler Jeep Tech

If you buy a complete set then maybe but they are usually sold in pairs.

check out crutchfield and call them because best buy is overpriced and they have a limited selection. also they charge tax and shipping. crutchfield is tax free and free shipping and all installation accessories needed is free. they have expert advisors and no pressure sales.

Most speakers come in pairs.

What you need to play allmost all music is: Tweeters (a must have, mount them dash height or higher.) Midrange front doors, midrange/or full range speakers backdoor. And BASS,as humongus as possible in a sealed, ported/vented or bandpass enclosure to have in the trunk of your car.