The iPodlounge notes that Belkin has posted details on its TuneDok car holder for iPods — the same holder being used in the Volkswagen “Pods Unite” promotion. The TuneDok features “AirGrip” technology for secure placement, a large and small rubber base with adapter cup for exact fit in your car’s cup holder, and a cable-management clip. The TuneDok fits all iPod models and retails for US$29.99. A shipping date has not yet been announced.