Hello guys, maybe someone can help me. I have a 2001 LS430 with a ML system and factory navi. My Radio does not seem to work. Well the volume does not work from the **** and the steering wheel. The tune works. I can change the radio station, Turn on/off the radio with the volume **** but nothing else seems to work. I checked the fuses, they are good. I disconnected battery. did not seem to really help. Can someone guide me? i dont know if its the AMP or the radio.