Cd Changer Disabled

[Saggia]

Hello everyone,

I have a yaris second series of 2006 and a strange thing happened.

Last week I made a tire change and, for distraction, the tireman kept the keys in the ignition for several hours causing the Battery went down charge...

I hypothesize because of bluetooth handsfree that I connected to the cigarette lighter (even though it seems strange that he may have downloaded so the battery).

When I went to collect the car, he briefly load the Battery, allowing me to go home and load the rest of the Battery... from that point of view I've had no problems ...

But I have noticed in the following days another side effect.

I own a Dension Gateway 300 (connected instead of the cd changer) that has always worked perfectly and now is no longer recognized by the car!

I thought that because of this voltage drop, the car radio has lost some setting that enabled cd charger and now is off ... it is plausible as an explanation?

Is there any key combination with which you can re-enable it?

Wiring and connection seems to be okay... I could only test the power to the Dension, and that seems ok too...

My stereo model is the one in the attached picture.

Many thanks guys