Standard equipment on the entry-level SR regular cab models includes 18-inch steel wheels, a matte black lower front bumper, rear bumper and grille surround, tow hooks (four-wheel-drive models), keyless entry, heated mirrors, full power accessories, a windshield wiper de-icer, a damped tailgate, cruise control, air-conditioning, cloth upholstery, a 40/20/40-split bench seat with four-way manual adjustment for the driver and passenger sections, a tilt-only steering wheel, two 12-volt power outlets, a rearview camera, Bluetooth phone and audio connectivity, a 6.1-inch Entune touchscreen interface and a four-speaker audio system with a CD player, a USB port, an iPod interface and an auxiliary audio jack. Options for the base 2015 Tundra include a bed rail system and a Work Truck package with vinyl seats and flooring. Get the SR Tundra in the double cab body style and you add front and rear map lights, 60/40-split fold-up rear seats and two extra speakers. The SR5 trim is available in the double cab and CrewMax body styles. Additional standard equipment includes foglights, a chrome grille surround, chrome rear bumper, variable intermittent wipers, a manual sliding rear window (power lowering in the CrewMax, which also gets an overhead console), a rear underseat storage tray (double cab only), a higher-resolution 7-inch Entune touchscreen display, satellite radio and HD radio. The optional SR5 Upgrade package adds front bucket seats with an eight-way power driver seat, a tilt-and-telescoping steering wheel, a front center console, an auto-dimming rearview mirror and an alarm system. Separately, the TRD Off-Road package adds 18-inch alloy wheels, all-terrain tires, an off-road-tuned suspension, skid plates, tow hooks (2WD models) and rear privacy glass. The Limited trim (available in double cab and CrewMax) adds to the SR5's standard equipment with 20-inch alloy wheels, heated mirrors, a more upscale silver billet grille, the bed rail system, dual-zone automatic climate c