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Step 5Prepare the Wires for Soldering
Once the handsfree headset wires are identified, cut the handsfree handset cord about 6 inches up from the plug that usually connects to the cell phone. Strip about an inch of the outer insulation away, and you will find the same color-coded wires inside that we saw at the microphone enclosure.
These wires will probably be fine gage, multi-strand and lacquer-insulated. To remove the insulation on these wires, pass the end of each wire through molten solder on the soldering iron tip. Do this a few times for each wire, discarding the solder each time. This will burn off and remove the lacquer and tin the multi-strand conductors.
Before soldering any wires together, you might want to clip them together and test that the system works.
These wires will probably be fine gage, multi-strand and lacquer-insulated. To remove the insulation on these wires, pass the end of each wire through molten solder on the soldering iron tip. Do this a few times for each wire, discarding the solder each time. This will burn off and remove the lacquer and tin the multi-strand conductors.
Before soldering any wires together, you might want to clip them together and test that the system works.
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