MP3 player in car

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al Contact options for registered users 's Avatar (by Gravatar) posted on
March 22, 2007, 2:52 pm
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Hi all,

I have an mp3 player (no name cheapy) that I want to use via the head
unit in my car.

I connected the earphone output (2.5mm stereo) to the aux in on the head
unit ( 2 x RCA's) and it works as it should ie I can control volume,
bass, treble etc via headunit.

The mp3 player is battery operated and is charged either by usb port on
the computer or by a 240v adapter that the supplied usb cable plugs into
(same cable for computer or charger)

The 240v charger is marked:-
Input: AC 100-250V 50/60Hz
Output: DC 5.0V +/- 0.5V
DC400mA

I'd like to be able to power the mp3 using the car's 12v system but I'm
unsure what input/output charger I need to put between the 12v source
and the mp3 player?

I had a look at Jaycar's website but couldn't see anything that sounded
right.

Can someone advise me what I need - other than a crash course in
electronics :)

Thanks

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David L. Jones Contact options for registered users 's Avatar (by Gravatar) posted on
March 22, 2007, 8:29 pm
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Re: MP3 player in car


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You simply need a 5V MP3 charger for the car, they sell them on eBay:
http://cgi.ebay.com.au/BLACK-USB-CAR-CHARGER-for-iPod-NANO-VIDEO-MINI-MP3-PDA_W0QQitemZ160096716559QQcategoryZ129446QQrdZ1QQcmdZViewItem

Dave.


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al Contact options for registered users 's Avatar (by Gravatar) posted on
March 23, 2007, 1:44 am
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http://cgi.ebay.com.au/BLACK-USB-CAR-CHARGER-for-iPod-NANO-VIDEO-MINI-MP3-PDA_W0QQitemZ160096716559QQcategoryZ129446QQrdZ1QQcmdZViewItem
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Thanks Dave (and others) for replies.

I ordered one of these off ebay this morning,

Cheers

Rick Measham Contact options for registered users 's Avatar (by Gravatar) posted on
March 22, 2007, 9:39 pm
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Unless you *want* to build it yourself, then look at something like the
firepod: http://www.thinkgeek.com/brain/whereisit.cgi?t=firepod

Alternately, the iGo is a fantastic product for power conversion. All
you need is the right tip and you're done. It selects voltage for you.
I'm not sure what type of plug your MP3 player has on that end .. but
you may find something in the iGo range:
http://www.igo.com/searchresults.asp?search_id=7

Cheers!
Rick Measham

Michael Heydon Contact options for registered users 's Avatar (by Gravatar) posted on
March 22, 2007, 10:05 pm
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Altronics have something similar. No firewire but less than half the price.

http://www.altronics.com.au/index.asp?area=item&id=M8623

-- Michael Heydon

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Geoff Contact options for registered users 's Avatar (by Gravatar) posted on
March 22, 2007, 9:49 pm
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So you need a 12V to 5V adaptor that can supply 400mA.

Easily doable if not already a product available.  Dick Smith sell 12
lighter socket adaptor,s and 7805 5VDC 3-terminal regulators.  One of these
and a couple of capacitors and you are away !  There is sufficient info in
the DSE catalogue reference section to hook it up even for an electronics
novice.

geoff



Graeme Gill Contact options for registered users 's Avatar (by Gravatar) posted on
March 27, 2007, 3:33 am
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And a heat sink. That's 2.8 watts to get rid of,
if it actually draws 400ma.

Graeme Gill.

jasen Contact options for registered users 's Avatar (by Gravatar) posted on
March 23, 2007, 10:31 am
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They make cigar lighter plugs with USB shaped power outlets that may work
for you. jaycar or DSE should hve them.



--

Bye.
   Jasen

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