What is this cable used for and how to install it?

>>15757826
Its an aux cable adapter, it may or may not plug into the back of your head unit.

So it means youll need to pull your head unit out and see if it will plug in.

Tnx man, how to get to the head unit though? :D It's a Renault Megane 3 if it makes any difference..

>>15757889
Google

>>15757826
>>15757860
If there is an aux port on the back if your head unit, you might as well just use an aux cable.

>>15757889
YouTube

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>>15757889

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>>15757889

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>>15757889
LOL

Do you have a cassette player? If so you can get an cassette-aux adapter $10.

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>>15757889

>>15757889
>Tnx man, how to get to the head unit though?

In most cars since 1994 or so, there's so much stuff in the way of getting to the back of the head unit. That means removing the dash board so you can access the bolts that mount the head unit to the structure that is itself mounted to the frame of the car. Once you unbolt the head unit, you can then check the back of the head unit.

Of course, you can simply avoid all this by thinking. You know your 3rd party head unit model. Look at the instruction manual for it. It will mention the features it has and whether or not it has an aux port for that type of cable.