That would be a very nice set-up.
I think I am going thru a mid-life crisis early I am 38. I used to have a competition show car in the late 80's as the mobile electronics stuff was really beginning to take off. Cerwin Vega and Alpine were sponsers to me back then, and yes I did have the IROC Z in those days to match!
I am so tempted to deck the X-fire out with a major stero upgrade. buying this AVIC-N1 unit is a major upgrade, and I did go out this morning with my husband and bought the Infinity 10" powered sub (basslink 10) and I also bought the Infinity Kappa 52.5I 5-1/4 speakers to put in the place of the woofers behind the seats. I just don't like the way those sound. I'm going to leave the doors alone until I see how all this stuff sounds hooked up. I think the stock Infinity amp should power these nicely along with the head unit itself as the bass is self powered.
I figure going with the basslink 10 will give me all the power I need. I don't like a lot of "boom." I like a nice balanced system. I think I will hold with this for now, but ask me next weekend after I have everything installed this week, and I may still have the car laid up because I went ahead and told my install guy to "go for it!" If I do have to put her up for long I still have my SVT Focus to drive (I couldn't trade it, I like the bang for the buck you get with it and I can keep the X-fire miles low, my business is 28+ miles from my home).