As one of its daily deals, Best Buy offers the Sirius XM Onyx Dock & Play Radio with Vehicle Kit, model no. XDNX1V1, for $19.99 with free shipping. That's tied with our mention from Black Friday and the lowest total price we could find by $19. This satellite radio features a customizable display, 1-touch channel jumping, 10 preset channels, and FM transmitter. Deal ends today.