Stereo/cd Console

[alanstav]

hi,i have an X reg avensis estate and my stereo/cd keeps going, off if i bang it it comes back on sometimes,i have had it checked and been told there is no problem with connections,and advised that it`s probably cd player or stereo thats at fault.my question is, the stereo/cd comes as a complete console ie:- heater controls,hazard light,alarm light etc.and was wondering what years of avensis had these consoles and can anyone see any problems just swapping said console?

thank you.stav