I would like to add a sound control modification to my Indiana Jones Pachinko. I've read posts on kits though have no idea which one to go with. Curious on what has actually worked in the field and which company's kits to go with? Are they that hard to solder in? Where would I do it on my IJ Pachinko (everything is incased in plastic hard shell cases)? The one I'm leaning towards is at http://www.pachislo.com/pachislo/par...il/volume.html