You can purchase a 2.5mm to 3.5mm adapter dongle and use that to connect a 3.5mm aux cable to your stereo. You can also use bluetooth via a2dp if your stereo supports that (few do).
Easy (just like codemaker states). I use the cable (earphone jack) only issue is my car has Bluetooth, when a call comes in I just unplug the cable. Easy and no longer pay for XM. I have listen to Pandora for at least 2 years on my laptop.
A little searching would have helped you a lot. Go to verizon and have them order you an "shs25-35" adapter. They are $9.99 and have a kick a$$ mic and answer/end/pause button with volume control. Don't let them sell you anything else it is the only one I have found there that works. Free 2 day fedex shipping is a plus too.
Now I listen to pandora and podcasts in the car everyday. It rocks!
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