Firstly, I asked sc boss and he said to fix the whole thing cost me 600-800, I was shock!
Then, I saw someone post in forte club via FB, he has fixed the insulator in sc by warrant claim.
After that, I call to NAZA ask whether the issue is under warranty, the Naza staff said this issue already announce in bulletin (not sure where to find it). They can fix it under warranty.
They have arrange the nearest Naza sc call me to "recall" my car to fix the issue. However, I didn't go back to Naza sc for the claim.
Finally, I have decided to go back the sc I visit frequently bcoz of good workmanship.
After clarified, the staff told me the cup holder area is under warranty, fixing the insulator is FOC.
But the USB console that area doesn't cover in warranty. To fix the whole thing from the whole center console cost 600-800.
And now the cup holder is less warm but cannot fix completely due to the airbag control/component is under the cup holder, they cannot put too thick insulator to avoid the airbag component lost function..
Already few weeks, I don't hear any rattling sound.
They really did good job!