This maybe a dumb question.. but I thought this would be the best place to ask it. With Entune coming out in 2012.. I was wondering if anyone knew if it would be possible to install an Entune system is say a 2011 Prius with Nav. Reason I ask, is because there are some great deals on 2011's right now... I could pick one up and install Entune later vs. waiting for the 12's. Thoughts.. comments?