Need help fixing AUX with no sound

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ILoveMyBenz69

New Member
Joined
Apr 17, 2021
Messages
1
Location
Canada
Car
Mercedes ML350 2015 Bluetech
Hi,

First I have ML350 2015 with NTG 4.7
I bought an Android Unit N600 Snapdragon 625 9 Inch, everything work perfectly, original NTG, 4G, GPS, Carplay.... Except for the sound.
I never used my AUX before since the 4 years I have my truck and just realized it simply doesn't work, even when I plugin an MP3 player, Ipad or Ipod, everything else have sound, radio, Bluetooth, CD..... I even tried with another AMI to AUX adapter

So far a list of everything I tried:
Removed the Ground loop noise isolator I bought to connect directly to the AUX AMI adapter
https://www.amazon.ca/gp/product/B019393MV2/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1 https://www.amazon.ca/gp/product/B019393MV2/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1
Because at first I thought it was my new head unit that didn't had sound coming out to AUX, I plugged in a pair headphone in the cable running in my center console using the Ground loop noise isolator.
Tried another AUX to AMI cable, I also tried the USB to AMI and plugin my phone and I can see it's charging
Resetting command by oldling the power button for a few second.
Removing fuse 100 and 147 for a few second in the fuse box under the rear left seat
Removing fuse 21 for a few second on the side passenger door fuse box.
Tried multiple devices in the AUX that I know have sound
I even removed the Android unit and put back everything to it's original state, just to make sure the Android unit is not in fault.

I took a couple of pics to show my setting and hopefully someone can help.

My AUX is available and selected
20210417_115340_dec173dc9249e46d1b8f023fb296980f0374c883.jpg
20210417_115536_03_775167bdc296fb0e8ebc961f2910d0127637f046.jpg




In engineering menu
7.5 - Most is ON and Audio source is External amp
7.7 - Audio AUX is ON
20210417_115632_a5ee726086d1be6cc996f5ce1d9c3fdfd2ff3b9f.jpg
20210417_115648_087d7516cd2d03f156f286c4da1d12a613e99584.jpg



The AMI I use and I even tried a second one.
20210417_115842a_1dd117188d7fb6d45af5630a6db0a42f7996313b.jpg
20210417_115842b_b935254e392cd1e388c718172b1eefac66903342.jpg




Here's the before and after for those interested on the Android unit, ( My problem had nothing to do with the unit, my AUX doesn't work no matter what device I use)
000_before_ff7d5d009826cef36265e79d6c8880bdf217af3e.jpg
001_after_e0dada3cfd8fe83d06b96d7ba2af19a05d34ef4d.jpg
 
Mismo problema y sin solucion
 
You dont have UCI turned on (set to Not Installed), I,e you've turned off the UCI so AUX via UCI can't work. When UCI is not configured, AUX is via the analogue AUX connections on the back.
Turn the UCI back on and use the Media Interface -> AUX lead you have bought. (AMI is an Audi thing, not a Mercedes thing, in the case of Audi actually very similar, but not so true with other cars with the same connector)

R
 

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