Re: I have a new car, and it needs a new sysem...
Thats how my Titan was too, 5 disc CD changer and controlls etc all integrated into the dash. Ended up jsut going with the dash kit in the end because it just was not possible to get a good signal from the stock HU. The stock Hu was only putting out about 6-8 watts per channel @ 2 ohms.
I really was going to g with a clean sweep etc but ended up with the das kit.
If you pick the right HU it should not look out of place at all! Hell it would be cheaper to buy the dash kit and modify it with bondo and paint it to match to make it perfect. Even with the best adapters in the world I doubt I could get the sound coming out of my eclipse HU, plus I would be stuck with no MP3 playback (comes on 06 titans though) and no time alignment or active crossovers.
Got a PAC-SWI-X to work with it after some trial and error IR Led placement so as to retain my steering wheel controlls.
Just something to think about...There are a few different dash kits for my truck some look better than others. The ones on Ebay and crutchfield were pretty ******, I use a OEM Bezel and Metra mount and it came out great.
Nissan Titan KC
Eclipse CD7200 MKII HU
DLS Iridium 6.2 Front Stage
Arc Audio XXK 2100 for fronts, Diamond Audio D5 1200.1
Knukonceptz 0 & 4ga and all Speaker wire and Streetwires 0 ga Power/Ground Distro Block, 4.5 rolls 60 mil RAAMAT and Ensolite foam througbhout, Kintetik HC2000 The Big 3 + 0ga Gounding Kit.