My Camry occasionally exhibits this volume control loss. Funny enough, the only thing that works is if you either use the steering wheel volume controls or if you smack the head unit right in the CD slot area. Then the volume know starts to respond again. LOL 
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2008 Camry Hybrid | Magnetic Grey on Grey Leather | Bi-Xenon H1 4300K Retrofit | Italian Hertz Sound System (dash 4" EM 100, front 6.5" ECX 165, rear 6" x 9" ECX 690, 10" ES 250D sub in custom trunk enclosure, HDP5 5-channel amp, 1320W total power) | 4-sensor Rear Parking System | 20% Metallic Tint | Weathertech Floorliners | 17" ASA AR1 Rims | Toyo Garit KX (winter) | Toyo Versado LX II (summer)
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Linear Mode
