I thought I'd add some comments.
I installed a Panasonic indash DVD pull out screen in my SC.
I am also using an ipod in it.
the TV tuner for the panasonic had2 vtr inputs, so i hooked it up with a Y adapter and voila.
I used a pocket kit that you can buy at goodguys or circuit city or any audio place. The kit was actually from my old car which was an Infiniti, when I looked at the kit instructions, it had adapters for Nissan, Toyota, Honda. So I screwed the pocket in on top, then the deck on the bottom tier. But then you have a gap of 1/2 din under, the only downside. But it's a pretty simple install, if you know what you're doing.
I'm not sure if you have to change your whole system though, since the factory speakers are amplified. I changed all of mine, so I don't know. You might be able to run wires to the factory speakers and power them from the deck. But I'm almost certain that you can't just hook up an aftermarket deck to the factory amplified system.
Hope that helps. :whistles: