Halfbakery: vehicle: road: audio http://www.halfbakery.com/view/fc=10720:s=c:d=iw:dn=100:ds=A:i=Ideas_20are_20sorted_20alphabetically_2e_3cbr_3e_0d_0a_3ccreated_3e:t=vehicle_3a_20road_3a_20audio?op=editview Ideas are sorted alphabetically.<br> <created> Halfbakery (mailto:bakesperson@gmail.com) All-Terrain Hard Drive Player (0.5) http://www.halfbakery.com/idea/All-Terrain_20Hard_20Drive_20Player Defined Startup Volume (0.5) http://www.halfbakery.com/idea/Defined_20Startup_20Volume Musical Mufflers (0.5) http://www.halfbakery.com/idea/Musical_20Mufflers Percussive Roads (0.5) http://www.halfbakery.com/idea/Percussive_20Roads Road Theremin (0.5) http://www.halfbakery.com/idea/Road_20Theremin Road tunes (2.5) http://www.halfbakery.com/idea/Road_20tunes Sound Control (-0.5) http://www.halfbakery.com/idea/Sound_20Control Tyrestylus (0.5) http://www.halfbakery.com/idea/Tyrestylus Whoopie Curb™ (2.0) http://www.halfbakery.com/idea/Whoopie_20Curb_99