Has anyone had this issue: Recently my 06 TL w/nav started acting up. When I start the car, sometimes the radio channel and volume will not show up on the upper display even though the radio is on. When this happens, none of the audio buttons on the center console seem to work and the HFL stops working. Also the audio buttons on the touch screen stop working. In addition, the nav unit and associated buttons still work and can still provide route information but the turn by turn voice stops working.

This problem is intermitent as sometimes when I turn the car on everything is normal and sometimes I turn it on and everything is screwed up. HAs anyone had this problems because it is annoying beyond belief and I am out of warranty and I know these nav/radio system repairs are expensive.