What size speakers in 2006 Chevy crew cab silverado?

The 2006 Chevy Silverado crew cab typically comes with 6.5-inch speakers in the front doors and 6x9-inch speakers in the rear. It's always a good idea to double-check your specific model and trim, as speaker sizes might vary slightly based on the audio system options. If you're planning to upgrade, ensure compatibility with the mounting depth and power requirements.