CT5BW rattle during heavy acceleration

[huemangos]

Anyone have any idea what this rattle is under heavy acceleration? I've noticed it's significantly louder during 60-90mph ish pulls and with the exhaust in the fully open position. My dealer is being very unhelpful and there's not really much else I can go look for. It's a bit hard to hear in the video, but I would think maybe it's some sort of loose heat shield or something?

 

[huemangos]

Reviving this as it's still ongoing and my dealer is pretty useless. Their techs just talking shit while test driving the car. I'm working to see if I can get a time where I can pull them into the car while I'm driving. I would appreciate any assistance here.

 

[hmrh]

There is some fake intake noise pumped in through the speakers that made the entire rear speaker deck of my vehicle rattle like a tin can. Is that it? I can't tell from the video.

This rattling also happened if you turned the bass volume up and played some bass heavy music

 

[huemangos]

There is some fake intake noise pumped in through the speakers that made the entire rear speaker deck of my vehicle rattle like a tin can. Is that it? I can't tell from the video.

This rattling also happened if you turned the bass volume up and played some bass heavy music

So I get that rear deck rattle separately but this sounds more like it's outside of the the cabin from driver wheel or under the driver ish of the car. I need to go find a place to do some pulls this weekend and try to get a better recording

 

[jbawden]

Maybe a GoPro mounted under the car? I saw a guy do this on his Durango and it was clear as day where the noise came from. All the passive insulation, ANC, and normal interior acoustics make a phone recording almost useless.