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Upgrade Your Car's Sound
without replacing the factory stereo
|The dash of the Kia Soul we used in our Helix Plug-and-Play installation|
Factory stereo systems leave a lot to be desired. They’re often programmed with equalization (EQ) curves that compensate for the system’s lack of power by reducing the level of the bass, for instance. And because the speakers are all located at different distances from you, the sound arrives at your ears at different times, making your music sound a little muddy. Often, the best solution is to replace the factory stereo, but the dash designs of some vehicles can make that option difficult, or less than desirable.
Custom sound system upgrades to the rescue
Luckily, this problem has some solutions that let you keep your factory stereo and get spectacular sound, customized for your specific vehicle. The three upgrade systems we discuss in this article improve the factory sound of different vehicles in different ways — you can call us if you need a hand deciding which will work best for yours.
Keep your dash intact
In addition to improving the sound to match your vehicle’s size and shape, these upgrade systems are “stealthy,” in that they’re designed to fit in your vehicle with no visible modifications to its interior, except for the addition of a subwoofer.
Option 1: Helix Plug-and-Play upgrade systems
|The Helix Plug-and-Play system|
Helix transforms your sound
A Helix Plug-and-Play upgrade system turns your car into a hi-fi listening space using a tiny digital processing unit with a built-in 5-channel amplifier. Once you install it, you download vehicle-specific programming from Helix’s site onto a microSD™ card, then load it into the processor. This aligns the sound for the driver’s position, and adds power and proper EQ settings, giving your music unprecedented clarity and impact.
|Martyn in his 2010 Kia Soul|
We couldn’t wait to give it a try
We’d heard a demo of what a Helix upgrade system can do, so we were thrilled to learn we were adding them to our brand lineup. We made Martyn, Crutchfield’s Photo Studio Manager, the lucky recipient of one of these upgrades for his 2010 Kia Soul. We pulled his radio out, plugged the Helix system in without cutting any wires, positioned the subwoofer in the rear, and put it all back together.
Centered for the driver’s ears
Martyn noticed the corrected sound alignment immediately. “Is the music supposed to move over to where I’m sitting? ’Cause that’s what it sounds like — from the center of the car over to where I’m sitting. It’s amazing. And I love the sub, it adds a lot to my music.”
"The original sound was okay, nothing spectacular. Now, it’s awesome." Just adding the subwoofer would make a big improvement, but the Helix processor also clarifies and enhances the musical details.
A major sound improvement
We performed an RTA (real time analysis) on Martyn’s system before and after we installed the Helix upgrade to measure the improvements that took place. The difference is night and day. Martyn now gets better bass and treble response, with an increase in overall sound levels.
The grey curve is the original sound performance on the factory system. The yellow curve is with the Helix system installed. The Helix processor makes the factory stereo and speakers sound better. If Martyn were to install new speakers, those mid- and high-frequencies would likely smooth out a little.
We used the following components for Martyn's installation:
- Helix PP50DSP digital signal processor with a built-in 5-channel amplifier
- Helix PP7E vented enclosure with two 7" subwoofers
- Some vehicles will also need a Helix PPAC vehicle-specific wiring harness, but it wasn't necessary for the 2010 Kia Soul
- A microSD™ card to store the vehicle-specific sound settings from Helix's website
Get a Helix system upgrade for your car
Helix presently has upgrades ready for quite a few popular, late-model vehicles. Call us, or use our vehicle selector to find the Helix upgrade for yours.
Option 2: Soundgate™ Powerstage™ by Kicker
|Powerstage system for the 2012 Ford Mustang|
Custom fit and programmed to make your vehicle sound great
A Soundgate Powerstage system upgrade by Kicker will transform your vehicle's stock radio and speakers into a high-fidelity sound system capable of giving you full, accurate, and richly textured music. And it does it without changing the look of your car's interior or dash.
It plugs into your factory wiring with no cutting
The heart of the system is the Powerstage processor/amp module that plugs in between your car's stock receiver and speakers with the help of a vehicle-specific wiring harness. Kicker's technicians measured the acoustics of the specific vehicle's interior, then developed a program to get the strongest and cleanest audio performance possible from the stock speakers. The Powerstage module breathes new life into your vehicle's factory system, automatically correcting for the limitations of the factory speakers, then adding plenty of power so the speakers can sound their best.
Of course, there's a subwoofer with it
A powered subwoofer, built to fit exactly in your vehicle, supplies the bass you need for fully balanced music. Soundgate upgrades come with all the wiring pre-cut and terminated to make installation easier. Step-by-step, illustrated instructions make this sonic upgrade a fun and rewarding project.
They’re currently available for many Chevrolet, Dodge, Ford, and Jeep vehicles. Use our vehicle selector to see if there's a Soundgate system available for yours.
Option 3: JL Audio StealthMod™
Add power and components to improve your sound
Stealthbox subs for the Camaro
A JL Audio StealthMod upgrade system works by replacing a few key components from the factory system, then adding an amplifier and a custom-fit Stealthbox® subwoofer to create a more powerful and better-sounding setup. Each StealthMod upgrade uses a different, custom-designed strategy to add power and improve the sound in the vehicle in which it works. Each package includes all the wires and hardware needed for a custom-fit, stealthy installation, along with photo-illustrated, detailed, step-by-step instructions.
Here are some examples of the vehicle-specific, customized approach JL Audio uses for these upgrade systems:
The StealthMod upgrade for a 2010-up Kia Soul adds a Stealthbox subwoofer with one 12" sub, a 3-channel amplifier, and a pair of full-range speakers.
The StealthMod upgrade for a 2007-up BMW X5 adds a Stealthbox subwoofer with one 10" sub, a 5-channel amp, a signal summing interface module, a pair of tweeters, and a new crossover.
These are just three ways to add improved sound to your car without changing the factory stereo. For more ideas, check out the Factory Radio Improvement section of our website, or give us a call and talk to our knowledgeable advisors. They'll help you figure out the options available for your car.
Plug and Play digital signal processor with built-in 5-channel amplifier