Aux port in car question

Nevakonaza

Nevakonaza

Nevakonaza

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7 Jan 2009
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Hey guys,

The car we have now (Mercades E320 Sport) has a AUX port in the glove box for the stereo.

If i buy a 3.5mm Male AUX Audio Plug Jack To USB 2.0 Female like this..

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and then plug in a USB stick with MP3 files would the Mercedes head player play these tracks?

See this head unit doesn't have a USB port so we cant just plug a USB stick in directly. ;)

just wondering if anyone's tried this.
cheers
 
The 3.5mm port will not power the USB stick. The poles on the port are only sending audio signals, not power. The USB stick needs 5v and 0.5A (typically) in order to be powered.

That and it's a digital device vs the analogue 3.5mm AUX jack.

You need to use a normal 3.5mm cable and plug it into your headphones jack on the phone or music device and play from the device directly.
 
Ahhhhh i understand now,So it doesn't power the USB stick..gotcha!

Thanks pepsil for those links,
the car actually has a Bluetooth reciever thing built in,So we can still use the phone and play music through it that way,But it would have been nicer if we could have just shoved all our MP3 files onto one stick,Shoved it in the glove box and thats it,No having to faff around enabling bluetooth,using extra battery on the mobile etc but hey,if thats what we need to do then thats okay.

thanks again chaps!
 
You can get both receiver to aux jack adapters. Then you can stream music from your phone to the adapter and onto the head unit through the aux port.
 
Nevakonaza;30494364 said:
Ahhhhh i understand now,So it doesn't power the USB stick..gotcha!

Thanks pepsil for those links,
the car actually has a Bluetooth reciever thing built in,So we can still use the phone and play music through it that way,But it would have been nicer if we could have just shoved all our MP3 files onto one stick,Shoved it in the glove box and thats it,No having to faff around enabling bluetooth,using extra battery on the mobile etc but hey,if thats what we need to do then thats okay.

thanks again chaps!
Click to expand...

Just leave bluetooth on. Modern phones are very smart with their power use, just because bluetooth is enabled while you're not in your car doesn't mean your phone is going to drain all the battery.
 
Actually, it's a lot simpler than that. Although power comes into it, its more the fact that the AUX uses your phone's, iPod, MP3 player's built in amp to play the music. All the aux input does is act like headphones, but pumps that sound through the cars amplifier (often with terrible results, especially at high volume), so even a USB stick that had power wouldn't work as it has no internal amplifier.
 
It's about as likely to work as sticking a CD on a record player. It's just totally incompatible on every level possible

To be honest I've no idea what purpose that cable is even supposed to serve. Best guess is that it's an adapter for a specific device that uses USB protocols but isn't able to use a proper USB port for space/packaging reasons.
 
I have no idea what that adapter could ever be used for. Some proprietary device with a weird 3.5mm that can be used as usb?

Incidently, you could also power your headunit via the mains using this cable.

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