A-Pillar Speaker Pods for Chevy 2500

I'm looking for finished physical A-pillar speaker pods for my 2022 Chevy 2500 HD. The pods should hold two 3.5-inch speakers on each side.

Requirements:
- Durable construction to withstand vehicle conditions
- Accurate fit for 2022 Chevy 2500 HD
- Ability to hold two 3.5-inch speakers per side

Ideal Skills:
- Experience with automotive custom fabrication
- Proficiency in creating secure and reliable mounting solutions
- Attention to detail for a professional finish

Please provide examples of similar work done.