When the temperature outside is below 4 or 5 degree celcius i have no sound come from my radio. when the temperature climb in the car after 4or5 minute the sound start. Its like if i have a temperature switch on the amply in the radio. I have a 2004 rx8 Gt

 

Well....that's a new one!
I guess I would turn of the auto sound leveling(or auto-pilot) whatever they call it and and see if that helps! Maybe that circuitry is too cold when not warmed up?
Actually..........if you start your car in the morning and wait for it to warm up...which you should, then it wouldn't be an issue right? Somewhat kidding, but try turning off auto-pilot if you have it.

 

no différence when the auto pilot is ON or OFF . The only thing that seem to works is the temperature in the car. I have to wait to listen the music.
If someone know where is the amply that could halp me!