2006 STS sounds like a baseball card in bicycle spokes when accelerating
 

my 2006 STS V6, sounds like a baseball card that is stuck in the spokes when I accelerate, any ideas?

Strange Noise
 

japanhulk,
I'd recommend taking it into the dealership if that's an option. This might be something easily fixable. However, it may be indicating a more severe problem. I'd be more than willing to help you setup an appointment with your dealer if you'd like.

Cadillac Customer Service,
Justin

Could use some more information. How many miles on the car? Does the noise change with the vehicle speed or engine speed?

Ideas yes. As Underdog says - more info. Do you hear it ff you rev it in neutral? Do you hear it if you rev it in gear with front wheels off ground?

thank you
 

I first wanted to thank those who replied to my post and here is some more info of what I am experiencing, when I rev the engine when it is in park or neutral I don't hear the noise, when I first accelerate I hear it and then when I reach speeds of 55mph or higher I don't hear the noise either,

My next course of action would be to jack the car up or put it on a lift and spin each of the wheels and see if the noise happens. It has to be drivetrain related, wheels, brakes, hubs, axles, driveshaft. Or, I suppose even the transmission could make a sound like you describe. Too many moving parts to answer a question like "My car is making a noise, what could it be?"
Keep at it and keep us posted.