Just Received my 91702 LA Railway St.Car. Very impressed. Love the all metal gearbox with brass gears. Just got done giving it it's first service. It probably will run forever. However am a little distressed by the lack of info info about the product and the notice about the pcb needing to be replaced. Is there a plug-in sound system available and what sounds does it make? I own just about all of your G scale 1.20 Spectrum locos all purchaced new. Did the two truck thing with my shay, perfect. You guys are the bomb. Keep up the good work. Thanks Jeff Langmack