There are a few factors to consider when choosing speakers for your car:
1. Size: You'll need to choose speakers that fit in the available space in your car. Measure the space where you plan to install the speakers to make sure the ones you choose will fit.
2. Power handling: Make sure the speakers you choose can handle the power output of your car's audio system. If the speakers can't handle the power, they may blow out or produce distorted sound.
3. Sound quality: Consider the type of music you like and the sound you prefer when choosing speakers. Some speakers are better suited for certain types of music than others.
4. Brand reputation: Look for speakers from reputable brands that have a good track record of producing high-quality products.
It's generally a good idea to choose a speaker that is a good match for the rest of your car's audio system. If you have a high-power system, you'll want to choose speakers that can handle the extra power. If you have a more basic system, you may not need to invest as much in your speakers.
The type of speakers that are best for your car will depend on your vehicle and the sound system it has. Generally, coaxial speakers work best in a standard factory audio system because they are designed to fit as a single unit, while component speakers are better able to produce sound custom tailored to your personal preference. It is also important to make sure the size of the speakers you choose will fit your car's specific audio system.