radio replacement

[nana08]

i have 2008 Toyota Yaris S i tried to install radio/GPS unit serial # 86120 33400 from 2006 Camry i both proper wire harness and the radio,cd start working OK but the audio is off if someone knows why please let me know my email is stnikolov2000@yahoo.com thanks :iono::iono::iono::iono:

[Kaotic Lazagna]

Are the speaker wires loose or properly connected?