- Pair of Bose QC 15's
- 3.5mm Bose QC audio plug (this needs to be the Bose one, comes with the headphones)
- cheap bluetooth A2DP dongle from eBay ($15)
- Soldering iron & a bit of solder
- 1" of solid wire, ~22 gauge (found on most resistors and solderless breadboard kits)
- Wire clippers or scissors
- Flat head screw driver
The first step is to take apart the bluetooth dongle and 3.5mm jack. You can pry the bluetooth dongle case apart with your finger nail. The 3.5mm jack takes a bit more work. I used a small flat head screw driver and it came right off.
You should be left with exposed circuit boards of the 3.5mm jack and the bluetooth dongle.
Step 1: Solder 3.5mm jack to bluetooth dongle
The first step is to desolder the wires from both the 3.5mm jack and bluetooth dongle. Apply the soldering iron to one of the solder joints and pull gently on the wire. It will come freely when the solder is melted.
Once all wires are desoldered, it is time to use the 22 gauge solid core wire to bridge the two parts together. Cut 3x 0.5" lengths of wire. Apply some solder to both ends of each wire, and then solder to the bluetooth dongle first (the bluetooth dongle is more cramped). Solder all 3 wires to the bluetooth dongle first. Once done, solder the other end to the 3.5mm jack as shown in the picture.
Once all 3 wires are soldered, you're done!