First Act partnered with automaker Volkswagen for a 2006 promotional campaign to distribute "GarageMaster" guitars with selected vehicle models through the end of the year. The campaign ran from October 3 through December 31. GarageMaster guitars were available in white, red, and blue to those who purchased a VW. The stereos in these Volkswagens could be used as an amplifier for the guitar. Accompanying advertisements featured guitarists Slash, John Mayer, and Nigel Tufnel of Spinal Tap playing First Act guitars through the sound systems of Volkswagens. The GarageMaster model featured a battery-powered on-board preamp, knobs decorated with the "VW" logo, pickguards matching the vehicle's color, a metal plate inscribed with the corresponding vehicle's VIN, and could be plugged directly into the vehicles' audio systems using a minijack cable.