Radio Will Not Power Up

[Dstot]

Depressing the Radio knob doesnt power up the mark levinson stereo.  still have sound from nav system.   any fixes for 2002 LS 430?

[1990LS400]

Have you checked the radio #1 fuse?  It's fuse 33 in the passenger side kick panel per http://drivers.lexus.com/t3Portal/document/om/OM50616U/pdf/6-4.pdf

I see at least two other fuses in the charts that are associated with the audio system.  

[RePete]

Had a similar issue with my 2001 LS430----radio did not power up.  Dealer quoted me something like $800 to replace the radio.  I declined the service.  Later, my CD player also stopped working.  Later again, I needed to replace my car battery, which was an Interstate. When I did, the radio and CD player popped right on, which surprised the heck out of me.  I informed the service rep at the Dealer who was dumb founded.  So, everything was fixed for the $150 price of a new battery.

[Sandboxman1972]

So, I have the same issue that the previous post mentions.  

I have sound. The nav system is working.  However, none of the controls on the radio itself work (power, volume, etc.).  Additionally the volume controls on the steering column do not work either.  

I can use the touch screen to adjust treble, bass, fade, etc.