Yea I did the ipad more for the cool factor for car shows and all. I mostly use CD's still to this day for any real quality long term listening. Will use the Ipad for the kids that like the bass demos, lol.
Yea, CD's are still the way to go. Either way, i'm sure the ipad hooked up in your system is gonna sound insane. Awesome build, your A-Pillars gave me inspiration to finally do mine, but i'm just running a 3 way front stage. Hybrid Audio makes awesome speakers.