2002 Audi A6 2.7T , Bose audio system wont work and the lights wont turn off

hi ,
I have a 2002 Audi A6 2.7t (certified pre-owned) , about a day ago the bose system stopped working , none of the buttons work , the red light on the bose display and the buttons are lighted up and wont turn
off even after the car is locked and the ignition is off , has anybody had this problem , any suggestions ?
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I had a similar sounding problem with my 2002 A4. I pulled and then reinserted the fuse which sort of rebooted the Bose system. Cleared up the problem. Try it, our problems may not be the same but you never know.

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Before trying this, make sure the correct radio SAFE code is handy...
/daytripper '00 s4 6spd
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It sounds like things can't get much worse even without the radio code. At least the lights might turn off.
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