I purchased a x0xb0x more than a year ago from a seller on ebay. It has some mods. There are a bunch of issues with it. Biggest problem is that the pitch is now rising and falling randomly without anything being touched. It is also pretty noisy (always). Is there anybody out there who can fix my box? I'm really looking for somebody to give it a complete tune-up, i.e. to check everything and make sure it's working properly (since I don't really know exactly what it should be sounding like). Please help! I am in NYC. I can ship it anywhere and I will pay whatever it costs. Thank you!