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Old 3rd March 2012, 03:09 PM   #1
diyAudio Member
Join Date: Mar 2012
Default Listen to a car stereo with headphones?

I just sold a vehicle and now I have a spare headunit, but no vehicle to put it in.

I work on a golf course but my iPod always dies on me while I mow.

I think I may be able to kill two birds with one stone here... Is it possible to wire up a headphone jack to a car stereo?
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Old 4th March 2012, 05:50 PM   #2
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
You can do it but you'll have to use only one of the grounds for the two channels that you'll use for the left and right signals. This should sound OK. If it does not, connect a 4 ohm resistor between the left/right negative speaker wires and the ground for the headphone jack. That will allow both grounds to send signal to the headphones.

You should also realize that there is 6v on all speaker wires so you'll either have to ensure that no metallic part of the RCA jack can make contact with ground. If it does, expect the internal amp in the head unit to be damaged. You can isolate all 3 (left/right/ground with capacitors before you connect to the headphone jack to block the DC which would help protect the head unit's internal amp.
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Old 4th March 2012, 11:05 PM   #3
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Join Date: May 2011
Car charger!?
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