![]() ![]() Symptoms: A-word cutting, B-Muffled audio, C-low volume. The far end party cannot hear well and asks again and again to repeat. On Rav4 there are two Audio/Screen manufacturers if you read the model ID if the 4th from last digit is:Ĭ unit is manufactured by Deson Ten latest DCU firmware is 1215 and includes the following fixīad voice quality on Hands Free talk. MEU/Naviigation this is the Media extension unit / Nav ECU If you press "setup" then on the right menu scroll down to "software update" there are 3 headingsĭCU/Audio this is the touch screen audio unit As above the later CY17 / CY19 Systems installed in new Rav differ from the earlier Touch 2 system in older Rav where both software and maps where bundled in update twice a year this was easier for updating but also meant "fixes" had to wait for Spring/Autumn map updates before they where released the new systems split software and maps so fixes can be released much quicker
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