The Alpine CDA-9815 is badass. I had it and swapped it out for a CDA-7998. The 7998 is badass as well, but it doesn't do some things that the 9815 can do. I'm mostly talking about visual things, the 9815's two line display is really nice. I guess I like the 7998's Fantom Face more than the 9815's two line display. I should have kept my 9815 just in case the 7998's motorized face craps out on me.