Summary: I bought one of these to go with a Pioneer GPS unit. This makes it easy, in theory anyway, to hard-wire the GPS audio and power to your car, with automatic switching...
Summary: If you're integrating an AVIC-F500BT with an OEM stereo system, you gotta have the amp. It's cheap, and it enables all the cool features of the head unit.
Summary: What a concept! Have your "portable" GPS unit function like an in-dash GPS, who wouldn't want that? That's what this box promises and delivers, although the install can...