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About Highdown Car Audio & Security

Highdown Car Audio & Security is an award winning in-car entertainment and security company based in Worthing, West Sussex. We offer a wide range of on-site services and our shop is open 6 days a week.

Our showroom is stacked with all of the latest in-car entertainment and security products from the leading brands. We can supply and install products to the highest standards and offer outstanding service, giving our customers everything you would expect from a specialist Car Audio and Security company.

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Awards & Accrediations

Highdown Car Audio & Security has once again, year on year been entrusted as one of the Mobile Electronics Industry Awards - Worldwide TOP 50 Installers. It's why customers entrust their vehicles with us and keep coming back.

Worldwide Top 50 Car Audio Installer 2022
Award winning car audio and security specialists Worthing

Client Testimonials

"Jeremy certainly know his stuff"

"I wasn't happy with the stereo in my Cayenne and missed having a DAB radio. The current sound at best was woolly and lacked definition so I decided to pay Highdown audio a visit. After an initial consultation discussing various options, I had a DAB fitted and had speakers upgraded along with sound dampening that have made a massive improvement to the overall sound. Jeremy certainly know his stuff and I would recommend him to anyone wanting their music to sound better."

Mark Jones
Google review

"Exceptional customer service!"

"Jeremy was extremely professional and offered exceptional customer service and care. He also took the time to explain and run through all of the features of the new screen which now allows me to use Apple car play along with a whole host of other cool stuff on my car. I really can’t give enough praise and recommendation to using High Down Audio."

Grant Pearce
Google review

"A very professional company"

"I contacted Highdown looking for an Apple CarPlay solution to my 2009 Audi Allroad, and following a conversation with knowledgeable owner Jeremy booked the car in. The installation was done very quickly and at a reasonable price. I now have Apple CarPlay working perfectly on the original Audi screen and will be back for a reversing camera in due course. A very professional company that I wouldn’t hesitate in recommending."

Steve Vyse
Google review

"So delighted really and highly recommended!"

"Had my small car fitted with pioneer up to date sound system digital and had a subwoofer fitted! Jeremy was a lovely guy extremely likeable and knowledgeable, he really knows his stuff and loves his job, you can trust to put the right system in your car. Also guaranteed for a year too! So delighted really and highly recommended! And after having the subwoofer fitted wondered why on Earth I never had one before it’s a no brainer!"

Stuart Sivyour
Google review

"Would easily recommend, thanks Jeremy!"

"Jeremy has just fitted reversing sensors on my wifes car and I have to say the whole experience was 10 out of 10. His professional and friendly manner was great and I felt immediately at ease. He managed to fit the job in despite being really busy and suffering from a tooth abscess. They look as if they were factory fitted. Would easily recommend, thanks Jeremy."

Steve Tutt
Google review

"Amazing, friendly and professional"

"Amazing, friendly and professional sorted out my Subaru’s old alarm system. I can not tell you how excited and relieved, I am to have a lockable, startable Scooby car. After spending a lot of wasted money and time replacing keys ...I found high down car audio & security ltd and most importantly Jess ! Thank u for being so patient and putting in the hours, sorted the same day it went in fantastic service."

Kathy Collins
Google review

Part of Four Masters

Highdown Car Audio & Security is proud to be part of FOUR MASTERS, a Nationwide Network of independent installers of high quality car audio systems with a common code of practice, which ensures first class service and high quality workmanship offering:

  • National 5-year parts and labour warranty
  • 21-day money back guarantee - excludes non-FOUR brands and custom fabrication
  • Specialist European Car Audio brands
  • Expert system designers and trained Installers
Four Masters
Four Masters Warranty
Driving Sounds

Authorised Specialist Retailer

Authorised retailer Hybrid Audio
Authorised retailer of Thinkware
We stock and fit Audison
Authorised retailer of Rainbow
We stock and fit Hertzs
Authorised retailer of Pioneer