A friend of mine asked me where to get an audio jack for playing his ipod with the car speakers. Then I thought why buying one? Because you can make one out of your old earphones!!
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Step 1: What You Need
1. Two pairs of old earphones
2. Soldering iron
3. Insulating tape
4. Helping hand (Optional but it's always useful to get one)
Step 2: Pair the Wires Together and Solder Them
I cut away the earphones part and left me the wire bits and 2 jacks/plugs. There were 4 wires on each pair of earphones. First of all, you should identify the similar colours and pair them up. However, I got 2 wires which were different from the other side. I paired them up anyway to see if it works. Then I soldered the wires together and test it with my ipod and speakers. IT WORKS!! Finally, wrap the wires with some insulating tape.
Step 3: Now Use It in Your Car or Home Speakers!!
Simply plug it to the 'Audio input' in your car or home speakers. For some stereo, you need to change it to 'AUX' mode.
From where I live (UK), the same audio jack cost Â£5.99 in a store. Now you can make one for free with your old earphones!!