Turn up the sound of your Squarebody.
At Blazin’ Biddles Off-Road, we’re bringing modern sound quality to classic GM trucks with a full lineup of DC Audio speakers, amplifiers, and accessories—all proven tough enough for off-road life and built to deliver clean, loud, reliable power.

From door panels to dash speakers and full subwoofer setups, every component we carry is tested and selected to work together perfectly in your 1973–1991 Chevy & GMC Squarebody pickups, K5 Blazers, Jimmys, and Suburbans.

What You’ll Find Here

• 🎵 Speakers: High-output DC Audio coaxials in 3.0", 6.5", and 6x9" sizes—perfect for factory dash, door, or custom installs.

• 🔊 Amplifiers: Compact DC Audio PS-Series amps like the PS1200x4 and PS3000x1 that deliver clean power without taking up space.

• 🧰 Accessories: Sound deadener, wiring kits, and installation hardware to get your setup dialed in.

• 💡 Integrated Upgrades: Our Blazin’ Biddles lower door panels are designed to fit DC Audio 6.5" speakers perfectly—no cutting, no guesswork, just bolt-on performance.

Whether you’re restoring your factory stereo or building a trail-ready sound system, this collection has everything you need to make your Squarebody sound as good as it looks.

👉 Explore the full audio lineup below and start building your perfect system.