Custom Audio Accessory & Design

Custom Stereo, Remote Start & Security Accessories for Automotive, Marine, Utility & Sport Vehicles in Northern Colorado

Stereo system up close

Custom Audio Systems

Upgrade your car stereo system with a custom package from Tun Design.

We design and install custom audio systems including stereos, subwoofers, speakers and amplifiers in vehicles including classic cars, boats, utility and sport vehicles, and more.

Every installation is customized to you, your vehicle and your preferences.


We can replace or upgrade your current stereo system, specific to your needs and wants. We have experience integrating Apple Car Play, Android and Navigation Systems in most vehicle types.


Subwoofers & Custom Sub Boxes

We not only seamlessly install subwoofers, we can also customize a sub box to fit in almost any space without sacrificing sound or design.



We’ll help you pick the best speakers that ensure a crystal-clear sound that will round out your entire audio experience. 


Along with a great stereo system comes a great amplifier. Amplifiers for your car stereo are categorized by the number of channels they’re designed to power, we install anything from mono subwoofer amps to 4-channel amps.

Security & Remote Starters

We install remote starters, security systems, and extra security features for almost any make and model vehicle, and in many cases we can even use your existing key fob ensuring the most seamless integration available. Not sure if we can add a remote start or keyless entry to your car? Contact us today to learn more about how we can customize your ride, no matter the make or model.

Remote Starters

Start your car from inside your home (or literally anywhere in the world) with an aftermarket remote starter. We can install remote starters on almost any vehicle type.


Alarms & Security Systems

Protect your investment, we install alarms and security systems including 2-way security system, which will wrap your vehicle in protection, with the most sophisticated electronic alarm system set up on the market.

Keyless Entry & Smart Keys

Keyless entry systems are used to remotely lock, unlock and even start your car’s engine using RF signals, whereas with smart keys, you can lock or unlock your doors depending on the proximity of your car without pressing a button. Both are convenient, secure, and will make your vehicle more safe in the long run! 

Remote starting a car in the snow

We offer premium, custom Audio & Accessory Design Services

I had Tun Design install a remote starter on my 2021 Kia Sportage and not only did he get it done in one day, but he was able to install it using my factory key fob so I didn’t have to have a separate button in addition to my key. Highly recommended!

Kerrie Luginbill

I work in the automotive industry (tinting and clear bra), and I recommend Chris at Tun Design to all of my customers and everyone always has great things to say about his work. He’s detailed, prices fairly and knows what he’s doing. Highly recommended.

Zach Fulton

Satisfaction Guaranteed

1 Year Manufacturers Warranty  & Lifetime Installation Warranty On All Installations

Some of the Brands We Install

Arctic Start Logo
Compustar logo
Alpine Stereo Systems
Compustar logo
Arctic Start Logo
Kicker Stereo Systems
Arctic Start Logo
Compustar logo
JVC Logo
Compustar logo
Arctic Start Logo
Compustar logo

And more… contact us today to find out if we install the brand you’re looking for.