12 Volt Tech: Signed, Sealed, Delivered
If we set the wayback machine to different time, say 25 years ago, the car dealership landscape was very different in the world of expediting. But in some respects, it is still the same.
Back then, a savvy manager knew he could deliver head units, especially on domestic vehicles, cheaper than the factory. So 'radio delete' became a namestay when talking to old timers. It still exists today (for example, the current Nissan Versa can still be ordered with a hunk of ABS plastic where knobs and a display should be). These tuneless vehicles would wait for the expeditor van to pull up and install a head unit, antenna and speakers.
Audiovox was famous for its SPS line (Special Performance Series) of head units. They looked very similar to the factory units and offered all of the performance for a fraction of the cost. The kicker? There was no Internet back then, and the customer could not find the SPS radios at Crazy Eddie or Radio Shack (yeah, they sold car audio back then too). So they could not get all slick and try and get one of the SPS radios through regular retail channels. But they could go to the aftermarket for a badass Nakamichi system.