I'm new to the forum and in the process of working on a number of my grandsons toys and I'm a bit confused so bear with me.... I'm working on a Fisher Price DYM07. Fisher-Price Bright Beats Dance & Move BeatBowWow (Green body & base) Upon viewing many videos and many variations of this toy I see where some are done with 2 switch jacks and others with 1. Which is best? Our grandson has VERY limited movement and coordination. Thanks!