OK, check this out. If you want to not only get your Ipaq's sound through your car speaker, but have a splitter that hooks your phone output to it also you can try this product called "Link" from Skullcandy. I bought the "Jacked" version that doesn't come with earphones. This is how it ties to this topic:
On both of our vehicles, there is an input, either on my wife's (tape adapter) or mine which actually has an auxiliary in on the front of the deck. Of course you can hook the Ipaq directly to it, but I realized after I bought this Link product, that the "headphone" jack could accept the end of the tape adapter or the end of the stereo cable going to my deck.
Then you plug your Ipaq/MP3 player into one side and your phone into the other side of the Link product. There is a little pod (size of a AA battery) that sits in the middle of the cord and it has a microphone, as well as a button and volume dial.
When you get a phone call you hit the button and it relays the phone audio to the car's stereo, the mic in the pod picks up your voice. The volume dial on the Lin's control pod determines whether you get to hear your music audio along with the call or whether the sound gets muted so you just hear the phone. SO for $30 you just made a carphone w/ integrated audio.
http://www.skullcandy.com/linkDetail...lLocation=link
In choose your "link" select "jacked" and you get the model that doesn't have connected headphones. This allows you to 1. use any kind of earphone OR 2. plug it into the auxiliary input of your car deck or use a tape adapter.
from their site:
"Hands-Free Listening
The LINK system allows you to listen to your music and use your cellphone hands-free through your headphones, without ever touching either device. When a call is received, you can either eliminate the music entirely, or simply reduce the music volume with the inline music control on the LINK console - listen to both the music and the cellphone at the same time! "
Cool thing is, it works pretty good as a portable solution too. Just use your favorite set of headphones in the Link's headphone jack and you can receive your calls on the same headphones that you're already listening to your music with as you go about your day.
What sucks is that the cables between the phone, ipaq/music player, and control pod are too short, so your devices will practially be in the same pocket or have to sit right next to each other in your car setup.
I wish that some company would do this with BT (because my Ipaq has BT, my phone has BT). As of now there's not an easy way to switch between the two if you have a headset that does bluetooth (since it won't pair with both devices simultaneously - you have to disconnect from one and connect to the other and it's not a simple intuitive step). Although the Link works well, getting rid of the wires would be ultimate.
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