Audio Systems: MP3 direct to factory bose unit, honda acura, control cables

Question
I have a 2001 Acura with a 6 disk changer in the trunk. Can I install a jack some how into the cable from changer to radio head?

Answer
Hi Jim,

 I'm not so intimately familiar with the sound system in this car that I know the pin-outs and cable bundles by heart, and unfortunately it isn't easy getting that info for free from Acura.  I do like the way you're thinking, though...

  Around 2001 most car changers are a mix of analog audio and digital serial control (so there's a left and right audio pair and three to six digital control cables running from the changer to the player).

Even though there is some anolog signal in there (so it's theoretically availible to hack into) it's almost impossible to do a pro job.  If you want to use that to stub in your Mp3 you've got to have some pretty serious engineering and mechanics chops -  far more than I can impart over the internet.   Be forwarned.

Here's a "tuner" hack site that offers some hope and less instruction on one possible method.  The amount of retro-engineering know-how required to pull this off cleanly is a little understated (and I can not comment on the site's reputability) but if you think you can handle it by all means go for a "retro-kit" solution like this:
http://www.autotoys.com/x/catalog/HONDA___ACURA_NEWER_MP3_AUX_INTERFACE_19982003...
(there are others out there, extend your search to similar vinatage Honda).

If I were in your shoes I wouldn't even bother.

I would suggest you either spend the money to upgrade to another head-unit (you may be able to use your old changer, I think it's actually made by Clarion) with iPod/MP3 control or go the easy route and buy an FM Transmitter that can then be picked up by your existing car stereo's radio tuner.

If we're talking about an iPod, Griffin makes a nice product (not an endorsement):
http://www.griffintechnology.com/products/itrip/

Or you can go with something more generic for any brand MP3 player.  Here's a sampling from one vendor:
http://www.nextag.com/mp3-fm-transmitter/search-html

None of these solutions will likely give you control of your iPod from the tuner.  Depending on the quality of your Mp3's both methods may be equal.

I wish you luck!