I just installed a Kenwood KOS-V500 Carportal system in my 1994 Acura; the installation is as a standalone unit (no factory stereo), with the Kenwood KOS-L702 widescreen, Kenwood KNA-G510 navigation unit, Kenwood ipod cable, and Audiovox CNP2000UC + adapter cable for XM (what crutchfield said...