I found a clean Pioneer CT-F9191 at a local thrift shop, however when I was testing it, I could not get the FF and RW to work. Id press the button, they would stick for a few seconds, then pop back up. Play worked fine. Any ideas? I'd hate to have it be something simple and miss out on it. Ive already got a nice one in my system, but figured I would try and save it so someone that appriciates it can enjoy it!