As of today I am a proud new owner of an 01 RC51, so I pretty much love this thing and I haven't even rode 100 miles yet. I do have a question though. When looking under the rear seat I found a small black box with SH on the back of it, It has 6 small switches labeled 1-6 on it and a small black buttom. Its connected to a 2 ft or so red wire with a plug that connects it to the box. Does anyone know what this is or what it does? I think it is something that is aftermarket.