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my howto: CLEAN wiring of the hidden AUX in Glove compartment for under $2

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Old 09-09-2010, 07:44 PM
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2009 C300 Sport 4matic
Thumbs up

Thanks so much for posting this how-to! I hated the fact that I couldn't use my iphone to play music and make calls at the same time, not to mention that the dash controls don't work right for playing music on the iphone. In fact, I was gonna order a 160-gig iPod just for this reason. Now I have a much better solution. Also, kudos for the site to order the cables from. Just ordered both and can't wait to install it!

Last edited by TheSeeker; 09-09-2010 at 08:05 PM.
Old 09-10-2010, 06:44 PM
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I just did it last week follwing your post. But the Aux input volume is very low! When I set the volume at normal level for CD and radio, I cannot hear anything from Aux. Do you have the same problem? How do you solve that? Thank you
Old 09-10-2010, 07:12 PM
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Originally Posted by raceway
I just did it last week follwing your post. But the Aux input volume is very low! When I set the volume at normal level for CD and radio, I cannot hear anything from Aux. Do you have the same problem? How do you solve that? Thank you

There is an option through the radio to set volume from AUX as regular or boost (I think that's what they call it). It will set your volume higher by default.
Old 09-10-2010, 08:02 PM
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Originally Posted by albertb
There is an option through the radio to set volume from AUX as regular or boost (I think that's what they call it). It will set your volume higher by default.

Thank you. but I dont see it in the menu. What's the model year of your car? Mine is 08. I saw another post saying that MB has added this option on the new firmware. Does anyone know if I can update it at dealership?
Old 09-10-2010, 08:10 PM
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Originally Posted by raceway
Thank you. but I dont see it in the menu. What's the model year of your car? Mine is 08. I saw another post saying that MB has added this option on the new firmware. Does anyone know if I can update it at dealership?
I have a 2010 with the base radio. When I play music through the AUX jack the three options at the bottom of the screen are AUX, Volume, Sound. Under Volume I have Standard and Boost.

I don't know anything about upgrades from the dealer.
Old 09-17-2010, 08:55 PM
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2009 C300 Sport 4matic
Surface Mount Audio Jack

If anyone's interested, instead of the marine-grade jack, there are many surface-mount 3.5mm audio jacks that sit flush with the console. This is the route I plan to go. If you search for "3.5mm Stereo Panel Mount Jack" on google you can find a bunch, such as this one from vetcosurplus.com:



or this this one from datapro.net that doesn't require any wiring.



Just FYI.
Old 09-17-2010, 08:57 PM
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Originally Posted by TheSeeker

or this this one from datapro.net that doesn't require any wiring.



Just FYI.
I had that one.

Andy
Old 09-17-2010, 11:19 PM
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ohh I need to post up my Bluetooth set up for streaming music off my phone. I'll take pictures tomorrow.
Old 09-20-2010, 03:27 PM
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Originally Posted by raceway
I just did it last week follwing your post. But the Aux input volume is very low! When I set the volume at normal level for CD and radio, I cannot hear anything from Aux. Do you have the same problem? How do you solve that? Thank you

MB is kinda slow on technology.... even with the iPod integration adapter, it sounds the same. AUX / iPod Cable are both play as analog.. CDs and other media format we have on our car is played Digitally. so it's not ur car, it's just the way it is... but i still like the AUX better than iPod adapter ( more control over searching music and the EQ.

and also just turn on your ipod volume up to 98%
Old 09-20-2010, 03:28 PM
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Originally Posted by Savage c-300
ohh I need to post up my Bluetooth set up for streaming music off my phone. I'll take pictures tomorrow.

really??? plz do tell! i'm very interested :naug hty:
Old 09-20-2010, 03:44 PM
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Just a quick question, is this hidden AUX on all C-class (w204) ??
Old 09-20-2010, 04:13 PM
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Originally Posted by DMoney08
Just a quick question, is this hidden AUX on all C-class (w204) ??
why not open it and find out ? You are not gona break anything so no worry man .

Andy
Old 09-20-2010, 04:31 PM
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agreed!!! but i think they all should have it

Originally Posted by M-bENZ
why not open it and find out ? You are not gona break anything so no worry man .

Andy
Old 11-03-2012, 04:49 PM
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sorry to bring back an old thread..but I just ran an aux cable all the way through and had the cable go through the glove box in the middle..that way there is never any cables exposed and it looks like its from the dealer...there is a hole if you remove the thin carpet thats on the bottom of the glove box, I didnt have to take out the air vents, center console, or anything
Old 11-05-2012, 02:18 AM
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Old 11-06-2012, 01:09 AM
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Old 11-06-2012, 03:46 AM
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good stuff , I know what I'm doin on my free time now thanks
Old 11-07-2012, 08:28 PM
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2008 C300 Sport Sedan: Panarama Roof, P2, Multimedia
With the popularity of smartphones and bluetooth a2dp, I'm looking into a wireless solution.

Has anyone looked into getting a bluetooth 3.5mm receiver to hook up to the auxiliary?

See below:





It goes for about $20 on eBay. No wires, and you can hide the receiver in your glove. Only bad thing is that you have to charge it every so often or hard wire power to it.
Old 11-09-2012, 12:33 PM
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dont know about the quality of the transfer...and for the charging there is a charger in the glove


Originally Posted by benzo-boi
With the popularity of smartphones and bluetooth a2dp, I'm looking into a wireless solution.

Has anyone looked into getting a bluetooth 3.5mm receiver to hook up to the auxiliary?

See below:





It goes for about $20 on eBay. No wires, and you can hide the receiver in your glove. Only bad thing is that you have to charge it every so often or hard wire power to it.
Old 11-16-2012, 09:56 AM
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Originally Posted by prznskillz
dont know about the quality of the transfer...and for the charging there is a charger in the glove
agreed with Prznskills, since AUX quality is not as good as digital quality and we have to transfer it through bluetooth... i dunno haha
Old 11-16-2012, 09:57 AM
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nice man, i'm just curious where it might be, i try to look for it.. no luck on my part, can u take a pic and show us?

Originally Posted by prznskillz
sorry to bring back an old thread..but I just ran an aux cable all the way through and had the cable go through the glove box in the middle..that way there is never any cables exposed and it looks like its from the dealer...there is a hole if you remove the thin carpet thats on the bottom of the glove box, I didnt have to take out the air vents, center console, or anything
Old 11-18-2012, 11:01 PM
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I have the blackberry Bluetooth adapter wired in the glove box (used 3M double sided tape and hid it under the self). There appears to be a newer version than what I have (in the link below - it was around $20 when i picked it up), but i'm sure most of them work the same. I recommend against the battery powered ones since there is power in the glove box and you don't have to deal with charging it.


Amazon Amazon
Old 11-18-2012, 11:07 PM
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Originally Posted by ekiefer
I have the blackberry Bluetooth adapter wired in the glove box (used 3M double sided tape and hid it under the self). There appears to be a newer version than what I have (in the link below - it was around $20 when i picked it up), but i'm sure most of them work the same. I recommend against the battery powered ones since there is power in the glove box and you don't have to deal with charging it.


http://www.amazon.com/BlackBerry-Rem.../dp/B00170KUM0
Is there sound quality difference compared to UMI Bluetooth stream?
Old 11-18-2012, 11:54 PM
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I don't have UMI so I couldn't answer. I couldn't tell a difference between the normal Aux cable and Bluetooth to Aux.
Old 11-19-2012, 04:56 AM
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Originally Posted by ekiefer
I don't have UMI so I couldn't answer. I couldn't tell a difference between the normal Aux cable and Bluetooth to Aux.
Ekiefer, thanks for sharing!

Couple of questions regarding the Blackberry branded bluetooth adapter. How do you have the power hooked up? Is it just connected to a car charger in the glove box? If so, does the power disconnect after you shut off the car. If not, it would suck to have bluetooth audio transmitted to the unit while you're at home with the engine off.


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