Not really, there is no way someone is going to try to rip out the main "head unit" display in a GT Premium, with all the HVAC controls and sync and all that jazz.
Amp(s) can and should be mounted under the package deck, and speakers will be mounted behind stock door panels.
A look inside...
It's OK. Not terrible, but I'll be upgrading soon. My drivers door rattles when it gets even moderately loud, but instead of having the dealer futz with it, I'll deaden it up when I put in the new components.
I chose the GT, for a few reasons.
1) It's a stellar V8, TONS of power, and that sound that you just cant get from a turbo 4.
2) I'm intrigued by the EcoBoost, the fuel economy is nice. The tuner market is going to go crazy with it, but say goodbye to any factory warranty. On a 35-40K car, I'd...
I passed on the PP. I HATED the black rims on the black car, will never race/track it, and the wife will drive it at times.
I did, however spring for the 20x9" rims and Pirelli P-Zero's :)