Author Archives: crowdesign

2013 Audi A6 Prestige Full System

From mquraish at

Location: Seattle, WA

Finally found a great car audio installer.

Hi all, I’m new to the forums as a member. I’ve been an avid DIY car enthusiast for many years now (’81 RX-7, ’90 Miata, ’93 RX-7, ’01 330xi) having done much of my own maintenance, upgrades, and tinkering. I have finally made it up to the Audi A6. I love the car, but the Bose sound system is not quite what I was looking for. I did not have the time or energy to do this myself now that I have 2 young ones, so I shopped around for a custom stereo shop that would cut no corners and had a passion for what they did. I “interviewed” many local shops in the Seattle greater metro and surrounding area and found Systems Unlimited in Bellevue, WA. Charles Maddy is the owner, has been around for 23 years, and does impeccable work. His lead installer on my car was Mike R. They are both passionate about their craft like no others I’ve ever met in the business. They sell quality, and stand 100% behind their workmanship. Now I will say that if you are price shopping to find the best deal on components or an install, stop reading. This post is not for you. Continue reading

Epic 23 Wakeboard Boat

Great Experience (Porsche 911)

By skidoc at Citysearch

Porsche 911 Turbo

Porsche 911 Turbo

I had Charles at systems unlimited install a 9500ci radar/laser in my 2006 911. The price was very reasonable considering the meticulous work. Took off front and rear bumpers, custom install inside for monitor and control—nary a telltale trace of the job noted. Shop is tidy and high tech. I am very particular about my Porsche and couldn’t have been more pleased. Checked out [the competition] too much $ or poor reputation. All aspects of the Escort work to perfection.

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Finally a Quality Car Audio Store in Washington (Acura TL)

By Stephen 425 at Citysearch

Acura TLMy first system seemed fine for the first couple weeks until I heard a friends car that was done by Systems Unlimited. He not only spent a couple grand less but got a much better install and overall much better sound using less equiptment. I ended up having them sound deaden the front doors and the trunk as well as build a fiberglass subwoofer enclosure to give me back my trunk. This made a huge improvement on the sound as well as making my car much quieter. It pays to do it right the first time. I could have saved lots if I knew about this shop. If quality is what you are looking for instead of the slam bam then check them out.

As Close to Factory Installed as Possible (Bentley GT Mulliner)

Video Screen

Video Screen

I wanted a state-of-the art sound system that looked as close to factory installed as possible. And I wanted maximum listening/viewing options. In other words, I wanted a system that plays cds (retain 6 disc changer so I can listen to books on tape or the old fashioned cd), has ipod capability, and has video-in-motion capacity. As to the sound, I wanted clear highs but substantial bass; but, again looking as close to factory as possible. This included my refusal to allow a subwoofer to displace the ski boot. Thus, figuring out how to add bass in a different way became one of a variety of challenges. The result is: I have an ipod; I have the original 6 disc changer; I have video-in-motion. And until you open the glove compartment (and see the ½ din dvd) or the trunk (and see the Tru Technologies amp and custom rack) the entire system looks as if it came direct from Crewe. And the system sounds “incredible”.

Escort Console

Escort display and controls hidden in ashtray.

In addition to the audio, Systems Unlimited did a stealth installation (both inside and out) of a 9500ci radar/laser system and a back-up camera (tucked above license plate and integrated into the nav screen).

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Jaguar XKR—Radar/Laser Deflector Installed

Jaguar 2012 XKR Nose

Jaguar 2012 XKR Nose

So, I’ll be the first to admit, I really don’t like driving the speed limit. I wasn’t even trying and my XKR quickly bumped up to about 100 miles an hour. It drives just smooth as silk and it keeps wanting more and more. If I wasn’t trying to be careful breaking in the engine, well, I guess we’ll have to see where my nerves start to get frayed and I need to slow down.

As a result, I’ve decided that it’s fairly necessary for me to have a radar detector that’s more integrated into my car. I have an Escort radar that’s portable. It works great but I hate having the cables everywhere. My husband took his Porsche to a local shop for the same radar/laser jammer by Escort and they did a phenomenal job so I decided that there was only one shop to take my new baby. (For those in the Seattle area – it’s Systems Unlimited in Bellevue (Charles Maddy) – intro )

They’re extremely detailed and very careful about all of their installs. They actually upgraded the stereo/speakers on our boat a couple of years ago for a very reasonable cost and also did a great job.

See original post on Jaguar Forums.

Great Install, Great Service, Great Product! (BMW M6)

by Turbo Guy at Citysearch



Had Charles from Systems Unlimited install a passport 9500ci custom install on my 2007 BMW M6 Conv and did a great Job. Unit works perfect, and the the diffusers are hidden nicely. you have to look for them knowing they are on the car to see them. Highly recommend Charles for his great work!

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Aerial Ferrari Audio Installation

Ferrari California 004

Mercedes CLS 550

Invisible audio and radar modifications

This customer loves her CLS and didn’t want it changed in any way, yet wanted it much quieter inside, with a serious audio upgrade and the possibility of far fewer speeding tickets. A state of the art Compustar security/Remote start/Tracking system was added. We first dismantled the car and installed the same soundproofing that the Russian Navy uses on their nuclear submarines.

For audio, we kept the stock head unit but fed its signal into good amplification and an invisible custom subwoofer. Can you spot the radar install?

Jaguar XKR

“My husband took his Porsche to a local shop for the same radar/laser jammer by Escort and they did a phenomenal job so I decided that there was only one shop to take my new baby. (For those in the Seattle area – it’s Systems Unlimited in Bellevue.)”

Read the full testimonial.