there are many ipod and sirirus hook ups on there market, lets see a poll on the best hookup (best mount, ease of install and manufactor help)

I use an Ipod adapter by http://www.peripheralelectronics.com/Very easy hookup, you can control the ipod though the stock head unit, steering wheel control or the Ipod wheel. Minor issue with it is that I'm not able to change albums using the head unit or steering wheel control, I can only move to the next song or go back to previous. Not a big deal to me since I set my Ipod to shuffle. The sound quality is great, way better than the fm modulator orthe tape player adapter. Also, with this adapter hooked up, it will not let you connect a Sirius or XM radio receiver to the stock head unit (another no big deal to me, tried satellite radio for 4 months and didn't like it). Big plus is I can just leave the Ipod in the glove box and don't have to touch it. I can just get in the car, turn the radio on, press CD button and Ipod comes on:), press the CD button again for the CD changer :). I'm very happy with this device, I also installed one in my Dodge Strat with a Sony head unit