Step 3: Placing the headphonejack
Now you have two wires that need joining up - the one from the speaker and the one from the headphone jack. Put heatshrink round one of the wires but don't shrink it yet. Adjust the wire so it comfortably reaches from the hole in the hood to the hole in the pocket going along the zip (this is important you'll find out in the next step why).
First twist the wires together and check it works by putting some music on. If your pleased then solder together and place heatshrink over it.