What is the 2002 chevy silverado speaker size?

The 2002 Chevy Silverado will come equipped with 6 3/4-inch speakers in the front doors, and 4x6 incH3 way speakers in the rear. These are extremely common speakers sizes so You should have absolutely no trouble finding aftermarket speakers. If You need to replace a broken speaker and want OEM parts You will be looking at spending between $20 and $40 per speaker. If You want to purchase after market parts and upgrade to louder and more powerful speakers You can purchase an entire set for between $150 to $400 for mid-range quality speakers. There are more high end sound systems You could put it to this truck but that would require customizations that might need the assistance of a mechanic.