I just joined the forum. I have wanted a tacoma for years and finally sold my 89 chevy s10. I now have a 2011 tacoma trd double cab. I have been adding things to it slowly, running boards, roof rails, tints, etc. I just noticed when a window is slightly open you get a constant thudding noise from the pressure. I am not sure if my roof rails created this pressure effect or if it always existed. Any idea howto get rid of it, besides opening all the windows or lowering that one more? Will a window deflector solve the issue? If so, any recommendation of which one? I heard in channel is the better choice. thanks for your help.