I bought New Balance Fitness Quest Model No NB6100-EK 6100r recumbent bike off of Craigslist, it's still not showing any display at all, neither plugged into outlet or off of new batteries. I've disconnected the 10 wire connector that leads to the console from the bike and took the black plastic cover off the display console. Where can I get used parts for this model? I really need to get this bike working asap please, thank you so much for your help