Just bought a 07 and I have a Treo 650, the phone works fine, my question is can you trun the volume up on the HFL, so I can hear the person on the other end better.

 

Use the radio volume dial during a call to adjust the volume.

 

you can control your HFL volume and audio volume separately. When you are talking on the phone using HFL, you are on HFL volume. Otherwise, you are on audio volume.

 

Either the volume control knob on the radio or the steering wheel volume control will adjust your HFL volume while you are on the phone.
The HFL maintains that volume independently from the audio/radio volume, so you don't have to worry about the radio blasting you out of your seat once the phone call ends.

 

Notice when your using the phone, it says HFL volume. You have indenpendant volume for HF now. just go higher or lower.