Mercedes audio problem?

Question:
i have an idea what it might be but i need to know if anyone has access to the wiring diagram for the Head unit in a 2003 ML350. i installed a 10"sub to add alittle more bass and when the bass hits on the audio track the volume jumps louder than what i have it set, it sounds like the audio sensor that monitors ambient noise kicks in to compinsate for the increase in subwoofers bass and turns my stereo dial up. i did a little trouble shooting and found that it does it with any source,cd,tape,and tuner. any help will be very appreciated. thanks.

Answers:

Sony Car stereo wiring?

You should be able to turn off that audio level sensor. I could even do that on cheap GM cars that I have rented.

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