Car Stereos: Pontiac Vibe factory stereo, 2004 pontiac vibe, pontiac vibe

Question
First, I have a 2004 Pontiac Vibe with the factory stereo, 4 speakers, no navigation system.

I found a wiring diagram at www.crutchfield.com but it did not fully help.  Specifically I would like to hard wire in a female headphone jack to the AUX input of the factory stereo.  The stereo has a CD and AUX button and I want to put a female jack in so I can plug in one of two Ipods, my laptop, or my son's portable DVD player.  I do not want to use an FM transmitter since the antenna sits way in back above the cargo compartment and gets poor reception from anything in the front seat.

Do you have any advice on how to hook up an AUX input or know where I can find a full harness wiring diagram?

Answer
Hi Derek,

You need something like one of these:

http://www.autotoys.com/x/product.php?productid=8108
http://www.pac-audio.com/productDetails.aspx?ProductId=91&CategoryID=24
http://www.neocaraudio.com/products.html
http://www.crutchfield.com/p_469GM12AX2/Precision-Interface-Electronics-GM12-AUX...

More information can be found here:

http://forums.genvibe.com/zerothread?id=21818

Justin