System 12 offers a car sound installation & 12 volt accessories installation service in Murwillumbah as well as mobile installation service covering Tweed heads and the Gold coast.


Whether your after a basic car radio or a full car sound installation overhaul we can help. With over 20 years experience upgrading and installing car stereo systems and the latest automotive electrical components.

Store Christmas and New years Trading

Closed – Friday Dec 25 till Monday 28th

Open Tuesday Dec 29 and Wednesday 30th

Closed Thursday 31st till Sunday 3rd

Reopen Monday 4th Jan 2021



New location now open

5/ 19 Lundberg Dr,

Murwillumbah South

 Mondays by appointment

Tuesdays by appointment

Wednesdays by appointment

Thursdays 8:30am – 5pm

Fridays 8:30am – 5pm

Saturdays 8:30am – 12pm





Mobile installations Gold Coast – Northern NSW

Mondays – by appointment

Tuesdays – by appointment

Wednesdays – by appointment


  • Mongoose MAP80S
    Upgrade car alarm

Our goal is to delivery the best service, advise and the highest levels of quality installation.

With peace of mind quality and the best parts to ensure years of enjoyment form your car radio and electrical system.

All our installations carry a life time workmanship guarantee as well as manufacturers warranty on all parts supplied.

We offer installations Monday to Friday 8am – 5pm and weekends arranged in advance.

  • Toyota Prado dash kit
    Toyota Prado 2011

Offering a convenient mobile onsite installation service direct to you home, work site or office, meaning little to no down time. Great for the tradies giving the ability to not have to wait for a rain day or loosing your weekend. Servicing all suburbs in the Tweed Heads region and Gold Coast regions daily. Live outside these regions? No worries give us a call and are happy to travel further south to Byron Bay, or north to Yattla when arranged in advance (please note a on road service fee will apply for smaller jobs in these outer areas ).



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