Question about Car Audio & Video
How to fix my 2008 volvo xc90 radio to hear with a headset
I too own a Volvo XC90 (2003), and the radios are similar, in fact it's the same radio with more features turned on. Now That being said, what you believe is true that can add the exact system you are talking about, however it will cost you. However if you use an impedance matching circuit you can trick the radio's computer into thinking that only the speaker is present when in fact you have a head set attached to the speaker. That's one way and if the Volvo dealer sees this arrangement your warranty is now voided.
However since necessity is the mother of invention their is a way to do this without voiding the car's warranty. It is called an acoustical pickup. Since you have a hearing problem I believe this will work.
If I am correct you want this device to feed into a one or two piece headset? I am going to guess that you want this as a mono setup. In that case here are the parameters I am working with, correct me if I am wrong
1) one piece head set (sound in one ear)
2) ability to couple sound from the radio and feed it into a headset
3) Will not void car's warranty
an in car audio amplifier with stereo pickup and headphone jacks, that way you can hear the radio and any ambient noises from in side the car this will basically allow you to hear the radio along with other sounds such as sirens, or other noises you need to hear while driving.
As to how to build this, the good thing is you don't need to, They make audio amps with stereo pickup and headphone jacks, check at radio shack or some other electronics store, and they should have this, you just need to add the headphones.
I hope this helps,
Posted on Jul 28, 2008
Since Volvo can and will do it for 2750.00, but you would rather perform a DIY (do-it-yourself), then there is a way. Like any other modification, it is of course to your discretion.
Your basic concern "wire a headset to a car stereo", would be relatively simple, that is if the headset is intended to work with the car speakers still working, it is a matter of tapping to the car radio speaker wiring. In effect making a parallel connection.
Find any of the speakers that would be relatively easy to open/expose the wiring, say door panel. There would be only two wires leading to that speaker.
Depending on the headset that you will use, there would be three (3) wires); 1 for the left, 1 for the right and a ground/common. Since you would be tapping to only 1 speaker, then you can short the left and right wire, this in effect would make the headset also 2 wires. Run it in parallel to the speaker wire. Often most headset are terminated/using a baby phone stereo plug. You need to buy the jack/female mate of this from any electronics supply store and solder sufficient length of 2 wires. As earlier stated, these wires will then be connected to the speaker. Physical installation is up to you as related safety features. Of course this may be frowned upon by Volvo or others.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FixYa.
Posted on Jul 28, 2008
I agree with Ginko, but if you really want this done, try to consult an electrician to make a cut out on your circuit allowing a line out for your headset.
Posted on Jul 27, 2008
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Posted on Jan 02, 2017
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