Corolla 2005 Autoradio-Prob

#1
Hey guys,

my radio isn't working like it is supposed to be. I did not change anything. I was just in the shop for fixing my brakes and it was very cold within the last few days. (-20 degree) ?!

what is working?
- FM/AM
- CD
- Volume changer
- Mute + Eject
- manual frequency change
what is not working?
- buttons AF, TA, PTY, AST
- buttons 1-6
- Input-Buttons to switch between CD and FM/AM (can only switch when ejecting the cd)
- Seek Track

I also checked the circuit breaker for cigar lighter cauz someone told me radio+cigar lighter are the on the same?

Could you guys please help me to figure out the problem?
 
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