6-CD Radio in '05 F350 - Buttons not Working
 

I just recently bought my 05 F350 Lariat used. I've found that on my factory radio, the power on/off doesn't work, you can't select FM to AM, and you can't reset the time. The unit has a MENU button on it and doesnt do anything, and I assume has something to do with setting the time. Could this be something to do with a theftlock feature? I took it back to my salesman at the local dealer, and the tech says the unit will need to be replaced. Just wanted to see if I could get some opinions from others before I let them root through the dash on this truck I just bought.

One thing about it though, the steering wheel controls work just fine, just can't toggle from AM to FM on the actual unit.

Let me hear some thoughts,

Thanks