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

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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Look online, there's acura specific amp bypass male connector harness available! Then get a line output converter for the aftermarket sub and your good to go!

If you do not have access to an aftermarket interface cable (some are available depending on brand and model of aftermarket radio), then yes, you have to bypass the amp if the new head unit has an internal amp, AND you wish to use the factory speakers with the new stereo.

There are many ways to do this, but if you want to do it yourself, the absolute best way is to get a copy of the dash harness wiring diagram from GM. This diagram will identify which pins in the radio dash harness connector run to the speakers and/or the amp, and whether you have to run new wires to the output side of the amp to connect to the speakers--this will not be specifically identified in the GM diagram (it will not say anything like 'to connect aftermarket radio, etc.), but it will be evident that you have to do this if there are no speaker pins in the in-dash connector.

You will need to run a Line output converter since your audio unit will not have audio output. This hooks up to your rear speakers.... You will also need to run ignition power source to your amp so your amp doesnt run constant.

You can start at the front or the back.. You have to trace. Start on the output of the amp..If everything is fine there go to your output from the unit itself..good luck

1- you need to provide a fused power wire from battery to amp
2- provide a ground wire from amp to car body or frame (be sure to clean off paint if connected to body)
3- connect your remote wire to your fuse box (16 to 22 gauge wire will be fine)
4- connect a line output converter which will allow you to use rca jacks (one side connects to the speaker wire in your car and the other to your rca jacks)
5- finish by connecting your speaker wires and rca jacks
if helpful please rate 4 thumbs up.

go to crutchfield.com they have install videos

crutchfield.com has a complete list of speaker sizes. Most car amps now have connections for RCA inputs and speaker-level too, so you can probably use the existing head unit: most OEM head units do NOT have RCA outputs.

Assuming that this is the Factory Head Unit? The only remedy for this on a Factory unit is to Find a New Unit. New or From a Salvage. You might even try EBay for a New Head Unit. Please Rate My Response! Thanks!

Is this meant for hooking up an amp and still using your factory stereo head unit? If so, you only need to use the four speaker wires. Go into the trunk and tap them into the rear speaker wiring per the labels on the converter's wires (right and left, plus and minus). Then plug your RCA cables into it and connect them to the amp.