Precision Upgrades for Every Drive
Upgrade your car with expertly fitted audio, tech, and comfort enhancements — from premium sound systems to parking sensors and security. Every detail is tailored to deliver precision, performance, and style.
Your Car Upgrade Specialist Since 1977
Founded in Reading in 1977, John Kleis Audio has been a trusted name in in-car entertainment for nearly five decades. From the early days of cassette players to today’s cutting-edge digital upgrades, the company has built its reputation on quality, reliability, and expert installation.
Still family-run and based on Basingstoke Road, John Kleis Audio continues to lead the way in premium audio, vehicle security, and custom car technology — delivering precision, innovation, and service you can trust.
Decades of Expertise
With over 45 years in the industry, we’ve set the standard for in-car entertainment and vehicle technology since 1977.
Quality You Can Trust
We’re known for precision installations, reliable products, and exceptional customer service that’s earned us a loyal following across the Thames Valley.
Innovation & Training
Our team stays ahead of the curve, constantly updating skills and equipment to bring you the latest in-car audio, tech, and security solutions.
Award-Winning Service
As a FOUR MASTERS authorised dealer and ICE Award winner, we deliver professional results backed by proven recognition in our field.
Ready To Upgrade Your Sound System?
Tell us what you need and an expert will get back to you with a detailed quote
Quality You Can Hear — and Trust
Our audio installation expertise has been recognised nationwide — we’re proud to be an approved and authorised FOUR MASTERS dealer.
As a FOUR MASTERS partner, every installation using Audison, Hertz, Eton, or Zenec products comes with a 5-year manufacturer-backed warranty, giving you complete confidence in quality and reliability.
We offer exceptional deals on the latest audio, multimedia, and navigation systems, as well as speakers, subwoofers, amplifiers, and more. Every system is custom-tailored to your vehicle and listening preferences for a truly personalised sound experience.
Trusted by clients across the UK
Behind the Build
Check out our Youtube channel where we showcase a range of our custom installations — complete with walkthroughs, demonstrations, and behind-the-scenes looks at our process.
Subscribe to discover how we work, what sets us apart, and the precision and quality that go into every John Kleis Audio upgrade.