Rattle Noise at Idle

[jmadd23]

Im having an intermittent rattle noise at idle. I dont think its the wastegates as I hear it towards the middle of the truck, I also checked the heat shield, doesnt seem to be the problem. Let me know what you guys think. Thanks!

 

[jmadd23]

Anyone have any ideas? Thanks

 

[jmadd23]

Bump, seeing if anyone has come across this..the noise occurs when stopped in gear with a/c on, it will go away when a/c is turned off. I checked the skid plates and heat shields.