I have a 1998 ES300 with the Premium Sound System with no CD changer, no NAV system and no car phone installed. The radio worked fine until today, when the sound just stopped. The radio still tunes to stations fine, but no sound comes from the speakers. I checked both fuses RAD NO 1 and RAD NO 2, they both are good, and removal of ether shuts the radio down.
I’ve spent hours reading the relevant posts on this and the British Lexus Owners forums, and have a basic understanding of the proprietary nature of the OEM sound system.
I would appreciate anyone’s insight as to where I should begin trouble shooting, now that I’ve done the obvious. Is it possible there is an additional fuse somewhere, perhaps on the external amp? Is it true that the external amp does not even come on if a CD changer is not installed? If I need to spend more that $500 to repair it, I would just as soon buy an after market system that would be XM ready and play MP3s.
Thanks in advance for your help.
Chris