You synch the Sony to the headset by holding the one button on the Sony down until you see the blue and purple lights flash. You then hold the volume up and down on the headset. You only have to do this once. Plug the Sony into the headset Jack on the zumo, and your good to go.
Then, I turn on the Zumo and Sony
When the phone icon shows up, press it and select your number from your phone book
Once you synch the Sony to the headset, you can also use it with an ipod. The headphone Jack clicks into the iPod (zune, etc) and your ready to roll.
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