Car Stereo Installation
First-Class Service for Your Vehicle, Without the First-Class Price Tag
Car Stereo Supply & Installation in Ōtāhuhu
A factory stereo from 2008 has no Bluetooth, no phone integration and no reversing camera input. Upgrading is one of the cheapest improvements you can make to a car you actually spend time in. H&H Auto Traders stocks second-hand head units and carries out professional installation at our Ōtāhuhu workshop.
We do the wiring properly, with the correct harness for the vehicle, so nothing is cut that should not be and nothing rattles loose in six months.
Our Car Audio Services
- Second-hand head unit supply from our stock
- Installation of units you have bought yourself
- Correct vehicle-specific wiring harness and fascia fitting
- Speaker replacement and installation
- Bluetooth and hands-free setup
- Reversing camera wiring [CONFIRM]
- Steering wheel control retention where the vehicle supports it
- Diagnosis and repair of existing audio faults
Why Not Just DIY It
A head unit is not simply four wires. Modern vehicles run canbus systems, and a unit wired in without the correct interface can cause warning lights, drain the battery overnight, or knock out functions that have nothing to do with the stereo.
Done properly, an installation uses a vehicle-specific harness so the factory loom is never cut, keeps the vehicle’s other systems intact, secures the unit so it does not vibrate, and is tested before you drive away. Done badly, it becomes an intermittent electrical fault that is far more expensive to trace than the original fitting would have cost.
Choosing a Head Unit
What to Look For
Bluetooth
hands-free calling is a legal necessity, not a luxury
Screen size and fit
We pull all stored and pending codes from every module, not just the engine.
Phone integration
consider whether you want Apple CarPlay or Android Auto
Reversing camera input
worth having even if you fit the camera later
Steering wheel control support
if your vehicle has them, you want to keep them
Tell us your vehicle and what you want it to do, and we will tell you what we have in stock that fits.
Frequently Asked Questions
Do you sell stereos or only fit them?
Both. We carry second-hand head units and we are happy to install a unit you have bought elsewhere.
How long does installation take?
A straightforward head unit installation is usually a couple of hours. Speakers, cameras and more involved work take longer.
Will it work with my steering wheel controls?
Often yes, with the correct interface. It depends on the vehicle and the unit — ask us and we will confirm.
Can you fix my existing stereo instead?
Sometimes the fault is wiring, a speaker or a fuse rather than the unit. We will check before recommending a replacement.
Will a new stereo drain my battery?
Not when it is wired correctly. A parasitic drain after an installation almost always points to incorrect wiring.