I have a 2008 rx350 with navi. The guidance voice and tones are non functional, Bluetooth connects but the phone speaker does not work. If I hit th eaudio button, it says that audio is off when the actual stero is on. Could this be a fuose or loose wire? My wife did move the drivers seat forward a long way to accommodate her and that is the only change that was made. Help!

 

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Fixed it! Pulled all fuses regarding audio and it reset the thing. It appears to be back.
Thanks