MP3 Splitter - BMW Luxury Touring Community
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post #1 of 4 Old Aug 23rd, 2008, 12:44 pm Thread Starter
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Join Date: Aug 2008
Location: Pesotum, Il, USA
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MP3 Splitter

Hi Guys!
Been lurking here for a few weeks. Decided to come out. AND no, I'm not gay!
Recently bought a 2002 LT that has a XM radio mounted above the lcd screen
on the tank.
Question is, can I put a splitter on the back of the radio & connect my Creative Zen mp3 player to it from the stingray?
Stopped by the bmw dealer in Savoy & the mech there said I could do that, but
wanted some conformation before I give it a try. I play it on shuffle so that isn't a problem. I'm assuming since the xm volume runs from the handle bar that the mp3 player would too.
My wife thinks I have 'another' new addiction to this website. I've read a lot & have a lot more to read. tia....

BMW 1200 LTC 2002

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post #2 of 4 Old Aug 23rd, 2008, 3:36 pm
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Location: Shingle Springs, CA, USA
Posts: 101
Re: MP3 Splitter

Hi Denny,

I am not even close to an electrical expert, but here is my 2 cents:

When I was on the "dark side" I avoided a splitter because of this post on the GL1800 site:

It looks like if the splitter is a simple non-isolation transformer splitter you could damage one of the devices.

Maybe someone with more details can chime in.

Shingle Springs + Redwood City Ca

2008 K1200LT Black, (Big Black Whale)
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post #3 of 4 Old Aug 23rd, 2008, 4:15 pm
Join Date: Feb 2004
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Lightbulb Re: MP3 Splitter

Plugging two devices into one input (via a splitter) is a sure way to burn up something. Not good. Even using a splitter on an output can burn up a device as you change the impedance of the output which can ruin the amp if it's not rated for a lower impedance.

When trying to use two (or more) devices into one input, you need to do one of two things.
  • You can simply just unplug the unused device while using the other device. Cumbersome and not fun.
  • Or, you can build (or buy) a passive mixer. Checkout this thread on 'HowTo' roll your own passive mixer. It's easy, cheap, and a fun little project.
Hope this helps...
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post #4 of 4 Old Aug 26th, 2008, 10:14 am
Join Date: Aug 2002
Posts: 243
Re: MP3 Splitter

The passive mixer is the only way to go. I built one based on the directions from the thread mentioned about and it works great. I am very happy with it and the price was right. $11 is pretty cheap and if you don't have a soldering iron you can get one pretty cheap and you will definitely use it again for some other LT related project.
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