How well does the Zune HD integrate with car stereos? I am in the market for a new mp3 player and the Zune HD is a front runner. Use is the car is very important for me... I currently have a dash mounted Creative Zen that just plugs into my car's AUX input via the headphone jack, but I would love to be able to get control via the stock radio (and thus my steering while controls), or atleast just hook it up via the line out. I've been looking at Soundgate's HONZN4
for my Honda CRV, which allows you just plug your Zune HD into the line out/dock port and makes it act like an aux cd changer. However it, and any other line out cables I can find, require power as well. From reading around, it sounds like Microsoft locked down line level audio output from the dock port so that it requires a signal to unlock it, which is all these things require power. If this is true, thats a pretty consumer unfriendly decision, especially given the fact that iPods don't require any power and Apple loves to lock stuff down. Its not a big deal if I get the above product and hardwire it, but otherwise it means another cable to plug/unplug everytime I use the car, and more messy cables.