We have a 2010 TG and I know that the passenger can control the volume for the "Push-to-talk" on the right hand side and control the function of the radio ( ie: AM, FM, Weather Radio ) on the left hand side. My question is, is there a way she can control the volume of the radio? Sometimes when she wants to tell me something, and the volume is too loud, I have to quick turn the volume down. It would be nice if she could do this function also.