Yeah , literally ANYTHING was possible as far as I was concerned , but the customer made it VERY clear that he simply did NOT care about looks , only great sound quality. He only wanted the factory radio faceplate to be seen when the car is parked , and didn't care about how the head unit looked , only that it was mounted behind the fake one. The amps , cap , wiring , sub , ect. can NOT be seen when the trunk is opened , just a fake trunk back that hides the equipment. the trunk is still useable , and the spare tire can be taken out without removing anything.
Anyone looking the car over in a parking lot would never be able to know there is even a system in the car. It's what he specified , so it's what he received.