About Car Sound Upgrades

Car Sound Upgrades is a reference site for factory car speaker sizes, OEM audio system specs, and practical fitment guidance. Every page is built around structured manufacturer data – not guesswork.

What we cover

We publish speaker-size guides for specific year, make, and model combinations. Each guide lists the factory speaker locations, sizes by trim level, factory amplifier and radio details, and practical upgrade notes – so you know what is already in the car before you order anything.

How data is sourced

Speaker specifications come from verified OEM fitment databases and manufacturer documentation. Trim-level audio data is cross-referenced against factory window sticker specs. Every page is reviewed by our technical editor before publishing.

Who we are

A small team of car audio enthusiasts and data engineers. We are not affiliated with any speaker brand or retailer. Our goal is straightforward: give you the right starting point before you open the door panel.