Makes clicking sound like relay from dash board. on 2008 Lexus LS460

I was driving with bluetooth on suddenly started to click loudly like relay and sound system doesn't work. the clicking sound is fixed regardless I adjust volume. does anyone have any clue what it could be? Thank you in advance.

Asked by for the 2008 Lexus LS460
if less than 50,000 miles, your Lexus is till under factory
warranty and repair will be free. if ove 50,000 miles, suggest a local Japanese specialist or auto radio shop. some newer systems cannot be diagnosed by the aftermarket, it may need to go to the Lexus dealer regardless.