Easy installation, no damaging or modifying the interior. Allows wiring and tubes to be cleanly routed for a finished look. Can be painted to match your interior. Full Pillar Mount 3 Gauge 1999 - 2007 ChevyGMC Truck Black. A clean, finished look Banks pillar gauge pods provide a clean, finished look to your vehicle's interior. Mounts on A - pillar allowing wires and tubes to be cleanly routed for a finished look. Available in 1 - , 2 - or 3 - gauge configuration. 2 - gauge configuration with partial - pillar covers or 2 - or 3 - gauges with full - pillar cover for seamless, built - in appearance. Optional provision for factory speaker on some models. Gauges sold separately, or included with some Banks power systems.