Im trying to figure out the solution on my Z1.During a phone call I have no control on the volume it's like the unit is stuck on a preset volume and I have no control on the volume setting from the sterring wheel or the headunit.I used to have control a wile back and my friend changed the setting but im not sure what he did.

in order to change the volume in a call, you have to go into menu, settings, volume. There is no other way as far as i know to change the phone volume. if you meant stereo volume, then your only options are full mute or -20dB for guidance/phone.

HTH

Kenny

Check the 'mute level' setting in the menu.

Thanks guy i guess it's on that menu as well. Last time my friend was in my setting a wile back I had phone volume controls from the stering wheel or the headunit Now my system will change the setting in the menu like you all stated. I would love to figure out how my friend changed the setting so I had volume controls from both the headunit or sterring wheels controls but this will do.