Car stereo has power but not sound
I'd like some help with my car stereo
i used to have this stereo in another car but I crashed and saved the stereo (at least) well, I connected this stereo in my 2000 Dodge Dakota and it does have power, radio stations AM/FM work just fine. the problem now is there is no SOUND when I play a CD (it does read the CD) or when i plug my iPhone through the AUX cord, like I said i used to have this radio in a different car so everything used to work fine.
I check the fuse (the one on the driver side and the one on the back of the radio) the fuses are good.
Can somebody help me fix this issue?