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How do I connect a line output converter to my factory head unit

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Hey I need a lil help with this.I put it a to channel to channel loc90 in my car .I have power and everything but I have no sound coming from my woofers am I doing wrong

Posted on Oct 13, 2014

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Depending on the type of line out converter that you have you simply just take the speaker wires coming from the head unit (you must know the color codes for the wires or you can do the process of elimination by pulling off the door panels and and viewing the colors and matching them at the wire harness behind the head unit). Pull out electric fuse for radio so you dont blow it while hooking up the wires. After you have done that just connect the speaker wires coming out of the head unit to the line out converter this will pre-amp your signal. After you have done that step on the other side of the loc you will have to connect and run rca audio cables to the back of your car to hook into your amplifier. The last step is to splice the power and ground wire coming from the wire harness and connect the radio power wire and loc power wire to the main power wire and then connect the radio ground wire and the loc ground wire to the main ground wire. Test and your done with the loc.

Posted on Oct 22, 2008

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1 Answer

How to instal a amp and sub on a OE stock radio


If you want to upgrade your sound system in your car by adding a sub woofer or speakers powered by an auxiliary amplifier without having to get a new head unit then hopefully this should help you :)

I decided to keep my standard head unit because it looks well in the car, is less likely to attract thieves than a shiny after-market unit and it is a factory upgraded unit anyway and i find it gives pretty good audio quality, it works with the steering wheel controls and has bluetooth and aux-in, so an after-market unit wouldn't offer a substantial upgrade.

Factory head units rarely have RCA or "Low line" outputs which your amplifier will need for it's input signal.
A "Low line converter" is a device which will piggy back your speaker outputs from your head unit and convert them to Low Line RCA outputs for your amplifier

The converter i bought also gives you a "remote wire" output which tells your Amp when the car is on so it doesn't drain your battery, if you get a converter without this option you can just join the remote wire to the Acc circuit of your car, or the 12V circuit with a switch (you will have to remember to turn it off though or your amp will drain your battery)

The methods i used will require an understanding of car/car stereo electrics so just be careful so as not to damage your car or yourself :)
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