Wiring up speakers to a Stock Head Unit

Is it possible to wire up further speakers, amps and subs to a stock head unit in a Holden VE?

Yes it is. It can be done.

But the head unit doesn’t have any RCA audio outputs?

That’s correct and you need is a Line Out Converter or sometimes referred to a LOC.

Where can I get an LOC from?

Personally, for my Audio System in my Sedan, I have a $15 JayCar LOC which is mounted within 30cm of the Amp in the boot of my car. The link to this LOC is this – http://www.jaycar.com.au/productView.asp?ID=AA0482. This LOC has worked 100% with 0 for the past 3 years.

Some people prefer to spend a little more on an LOC, it all depends on what you are wanting, but all you need is your audio signal into an RCA connection. You can get other LOCs off eBay or other car audio retailers in store or online.

Where do I tap the LOC into?

I have run extension wires from the rear door speakers into the boot of the car which is then wired into the LOC. If you have a ute, you can use the front speakers.

Can I tap the LOC into the audio lines at the front of the car?

Yes, you can. What coloured wires they are, I am not sure.

How do I stop alternator wine?

Holden VEs are known well for their alternator wine. For my system I have used one of these to reduce it – http://www.jaycar.com.au/productView.asp?ID=AA3084 – this has been put in after my LOC.

If you also have alternator wine while playing via AUX, you might notice it only happens when you have your iPhone, iPod, iPad, Android or smartphone charging via the 12v accessories, well I have stopped that wine by putting on these filters in line at the AUX end – http://www.jaycar.com.au/productView.asp?ID=AA3086.