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Old 30th August 2012, 09:06 PM   #1
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Join Date: Aug 2012
Default Help Soldering 3.5mm Stereo Jack


Pardon my ignorance and possible misuse of nomenclature, as this is one of my first attempts at a DIY stereo project. I am attempting to add an auxiliary jack to my car. I have been using a Monster Cable similar to the following:

Click the image to open in full size.

It plugs into the car stereo with 2 male RCA connectors, and at the end there is a 3.5mm male stereo plug that I can hook up my phone or ipod to. I've cut off the male stereo end, and inside the monster cable I was a bit confused - there appear to be three different sets of wiring. There is an outer silver wiring (which I assume may be shielding), and then there are two sets of two wires. One set is a blue and a green, the other set a black and a red. Basically I am quite confused as to which cables are going to be soldered to which terminal on the stereo jack. Here is a picture of what I'm dealing with:

Click the image to open in full size.

Any help or ideas would be greatly appreciated!
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Old 30th August 2012, 09:40 PM   #2
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Join Date: Nov 2005
Location: San Antonio
Easy solution. Strip the wire ends from the stereo male plug and use an ohmmeter to determine the correct connections.
It is error only, and not truth, that shrinks from enquiry. - Thomas Paine
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Old 4th September 2012, 05:32 AM   #3
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Join Date: Jul 2012
Originally Posted by sofaspud View Post
Easy solution. Strip the wire ends from the stereo male plug and use an ohmmeter to determine the correct connections.
Yes, and to add, these are also known as "multimeters" since a lot of them do other types of measuring besides impedance (votalge, etc.) Some, even the cheap ones have a simple continuity tester with an audible tone to let you know when things are making a connection.
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Old 14th September 2012, 05:30 PM   #4
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Join Date: Jan 2004
Location: Near Vancouver
Battery and lightbulb anyone?
planet10 needs your help:
Let's help Ruth and Dave
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