Mitul90

I have a 05 Lexus es 330 and my radio is intermittently going out and coming in. Also now I have lost Volume controls from the stereo system and the steering wheel. I have took it the local radio shop but they couldn't figure out the problem. When the radio goes out my navi still works and I can hear the voice of the navigation lady, but no radio or disc. Has any of you had this problem or can help me with this problem.