Solder AUX input on cd signal
Thread Starter
Junior Member
Joined: Feb 2019
Posts: 21
Likes: 3
Mercedes w212 2012 Wagon
Solder AUX input on cd signal
Hello.
I remember when I had a w211 I soldered wires on the cd input to be able to get aux in my car.
In my 2012 w212 audio 50 I do have aux through media interface, but the sound quality is horrendous (it's fine with cd's or radio), so I was thinking if I did the same I did on my w211 I might get better sound quality. A long shot maybe, but if it works it's definetly worth it.
Have anyone else in here tried this and know where to solder maybe? I haven't opened up my unit yet to even have a look. More safe to do it if someone else could guide me in the right direction.
Thanks in advance
I remember when I had a w211 I soldered wires on the cd input to be able to get aux in my car.
In my 2012 w212 audio 50 I do have aux through media interface, but the sound quality is horrendous (it's fine with cd's or radio), so I was thinking if I did the same I did on my w211 I might get better sound quality. A long shot maybe, but if it works it's definetly worth it.
Have anyone else in here tried this and know where to solder maybe? I haven't opened up my unit yet to even have a look. More safe to do it if someone else could guide me in the right direction.
Thanks in advance
MBWorld Fanatic!
Joined: Feb 2017
Posts: 2,296
Likes: 1,204
From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
Hello.
I remember when I had a w211 I soldered wires on the cd input to be able to get aux in my car.
In my 2012 w212 audio 50 I do have aux through media interface, but the sound quality is horrendous (it's fine with cd's or radio), so I was thinking if I did the same I did on my w211 I might get better sound quality. A long shot maybe, but if it works it's definetly worth it.
Have anyone else in here tried this and know where to solder maybe? I haven't opened up my unit yet to even have a look. More safe to do it if someone else could guide me in the right direction.
Thanks in advance
I remember when I had a w211 I soldered wires on the cd input to be able to get aux in my car.
In my 2012 w212 audio 50 I do have aux through media interface, but the sound quality is horrendous (it's fine with cd's or radio), so I was thinking if I did the same I did on my w211 I might get better sound quality. A long shot maybe, but if it works it's definetly worth it.
Have anyone else in here tried this and know where to solder maybe? I haven't opened up my unit yet to even have a look. More safe to do it if someone else could guide me in the right direction.
Thanks in advance
Thread Starter
Junior Member
Joined: Feb 2019
Posts: 21
Likes: 3
Mercedes w212 2012 Wagon
There is no built in bluetooth audio for my device. I can use an adapter through the media interface, but the quality is as bad as with a cable so I assume the problem is in the media interface itself
Last edited by Sindre Tysland; Jun 23, 2025 at 07:40 AM.
