What size speakers are in my car, writing homework help

1000 words articleWriting style: Friendly toneArticle purpose: For blog that specializes in reviewing car audio componentsSpecial instructions: DIRECTIONSArticle title: What size speakers are in my car - car speaker size guide?Please take care to write in a single, friendly voice. ARTICLE STRUCTURE:What to include in article: - How to find out what speakers fit my car?- Best online tools- Car manual - where to find?- Other methods?- How many car speaker sizes are there and write them?- Other things you find out during your researchIMPORTANT:We won't accept articles with low quality.