The Toyota Sienna is typically regarded as a suburban transport vehicle for soccer moms and the like, but an overhaul for SEMA, courtesy of West Coast Customs and SiriusXM, has transformed the minivan into a veritable party bus. Surprisingly, the exterior is fairly close to factory, with stylish enhancements taking the form of custom mesh wheels, blacked-out grille and color-matched emblems. The centerpiece here is a 360-degree A/V column that rises out of the roof, revealing two 40″ LCD monitors, four 12″ subwoofers, 16 speakers and two LED bars. The rear tailgate also sides out to uncover a DJ booth, eight additional speakers, five amplifiers and two 32-band equalizers. Check out detailed looks below.