I posted on the Lexus forum but no help so I am asking my mud folks for help. When you turn the engine on if you hear a little popping sound then the radio speakers do not work nor your phone through bluetooth. If you crank the car and do NOT hear this small popping sound then you have radio and phone speakers that work. Sometimes it take you having to crank the car 4-5 times before the speakers work. Any idea what is going on or what to look for before spending what I feel will be a lot of time and money at the Lexus dealership???? thanks for looking and trying to help out a fellow mud member.