Extreme Audio is the name of this game. Alpine’s Advanced Application R&D team is unbeatable when it comes to innovation and installation of the newest audio goodies. This year they chose the R500 to show-off their latest Signal Processing Technology. The R500 was also an accomplishment for the engineers who installed everything. The doors were turned to suicide and attached to the front seats. Even more amazing is the front seats swivel to make entering and exiting the vehicle easier. Resting in the Truck is a motorized rack holding 6 of Alpines PDX amplifiers that rotates out for display purposes.