How to add Aux in to Audio 20 with no Aux Input selector!

[jetjockey]

Hello All.

Having come to this site searching for answers to the lack of an AUX Input on the Audio 20, I see that it is a problem suffered by a lot of people.

I came across the answer the other day on an American MB Forum. They had a link to a German MB Forum where the procedure was explained. It's a trick I have used before in the early days of Car Radio. I had no idea it was so easy to implement on the Audio 20 with no AUX Input selector.

I carried out the small mod to my own unit and it worked a treat.

I am mentioning this here in an attempt to help out those people who are in the same predicament as I found myself in a week ago.

I presume that this mod is common knowledge so I will not outline it unless asked. Just trying to help really. This is not the mod where you buy the connector from MB and then connect it to the empty connecter already under the carpet. This is specifically for those Audio 20 units which don't have any method of even selecting Aux in, never mind having a connector.

Thanks, Gerald.

 

[Alfie]

Hello All.

Having come to this site searching for answers to the lack of an AUX Input on the Audio 20, I see that it is a problem suffered by a lot of people.

I came across the answer the other day on an American MB Forum. They had a link to a German MB Forum where the procedure was explained. It's a trick I have used before in the early days of Car Radio. I had no idea it was so easy to implement on the Audio 20 with no AUX Input selector.

I carried out the small mod to my own unit and it worked a treat.

I am mentioning this here in an attempt to help out those people who are in the same predicament as I found myself in a week ago.

I presume that this mod is common knowledge so I will not outline it unless asked. Just trying to help really. This is not the mod where you buy the connector from MB and then connect it to the empty connecter already under the carpet. This is specifically for those Audio 20 units which don't have any method of even selecting Aux in, never mind having a connector.

Thanks, Gerald.

Many audio20 units dont have the necessary plug on the rear in the quadlock connector though so it means the audio20 coming out to have the connection fitted.

 

[television]

I have the info for fitting this on most cars

 

[jetjockey]

Hi Malcolm

You are correct of course, the unit does have to come out.

However, The mod on the German site involves Hijacking the single CD signal path inside the Audio 20 and running a lead with 3.5mm jack plug or socket outside the unit. This has to be done because the Audio 20 head unit in question will not allow selection of Aux in via the buttons on the front of the unit.

Do the instructions you have also show how to enable the "Aux in" selection from the front panel? I would be very interested in a copy of the instructions if you would be so kind Malcolm.

And now off to write my next post regarding the Pre heater booster on my W211 which is showing a current and stored fault code.

Gerald.

 

[television]

Is this for the 211

 

[jetjockey]

Hi Malcolm

Yes, it's for the W211.

Thanks, Gerald.

P.S. Any thoughts on my Booster Heater problem?

 

[Alfie]

Audio20 on a pre my2009 W211 does not have AUX input available on the back of the head unit. So you are looking at a disassemble of the audio unit to find an output. Or of course you could fit a MOST Dension gateway instead.

 

[television]

Audio20 on a pre my2009 W211 does not have AUX input available on the back of the head unit. So you are looking at a disassemble of the audio unit to find an output. Or of course you could fit a MOST Dension gateway instead.

What do these things cost alfie,,so many ask

 

[Alfie]

What do these things cost alfie,,so many ask

About £375 for the MOST Dension. Includes all the necessary parts.

 

[Paddy Flynn]

Hello All.

Having come to this site searching for answers to the lack of an AUX Input on the Audio 20, I see that it is a problem suffered by a lot of people.

I came across the answer the other day on an American MB Forum. They had a link to a German MB Forum where the procedure was explained. It's a trick I have used before in the early days of Car Radio. I had no idea it was so easy to implement on the Audio 20 with no AUX Input selector.

I carried out the small mod to my own unit and it worked a treat.

I am mentioning this here in an attempt to help out those people who are in the same predicament as I found myself in a week ago.

I presume that this mod is common knowledge so I will not outline it unless asked. Just trying to help really. This is not the mod where you buy the connector from MB and then connect it to the empty connecter already under the carpet. This is specifically for those Audio 20 units which don't have any method of even selecting Aux in, never mind having a connector.

Thanks, Gerald.

Hi Gerald can you send me the full details how to do this, and what to buy.

Thanks.

Paddy.

 

[cleverdicky]

What about the video signal on aux?

 

[alex_bnz]

hello all
i'm from a small contry from europe,i have the same problem with my w211 2003 i don't have a aux in,please tell me how did you rezolv this problem,sorry for my english,have a nice day

 

[television]

hello all
i'm from a small contry from europe,i have the same problem with my w211 2003 i don't have a aux in,please tell me how did you rezolv this problem,sorry for my english,have a nice day

Hello and welcome, do you have the Comand or Audio 20

 

[jberks]

I'm curious too. So, who has the details or where do I find them?
Also, if wiring directly into the cd player outputs, presumably you need to select "CD"?
I assume you have to have the player empty but in which case, does it still select
So how does this work, is it a case of keeping the volume down to a level on the MP3? Any risk of damage to the audio20 if its played too loud?

 

[jetjockey]

Hi Folks.

Sorry for the delayed reply. I've been away for a few days.

The details and links are all contained in the first post in this thread but if anybody would like to PM me I can send the details again.

Cheers, Gerald.

 

[Timur]

Hi Gerald, could you please, send me the full details how to do this.

thank you & regards

Timur

 

[Kaliausius]

Hi Gerald,
Can you help me with aux installation please?

 

[television]

A web search should bring this mod up, you have to dismantle the radio and add the wire to the PCB.

 

[alanthebig]

re audio aux for audio 20

please can you post these instructions as I would be interested in fitting this to my w211 2003
many thanks
Alan

 

[alanthebig]

I have the info for fitting this on most cars

please can you supply the instructions to fit an aux supply as my w211 does not have this
also what parts are needed many thanks
Alan