Chevrolet will run a multimillion-dollar ad and promo campaign, including online, across Nickelodeon's media platforms, ClickZ reports. The campaign focuses on the Chevy Uplander and an in-vehicle digital entertainment system – PhatNoise - which supports audio, video and games. Nickelodeon will supply PhatNoise content for the Uplander and other GM vehicles that offer the system. Visitors to the Nick Jr. site can test the PhatNoise technology and can enter sweepstakes.