Golf/GTI VI :: Can't Hear The Intake - DV Flutters

Before everyone starts telling me to get a tune or a proper intake I did this as an experiment. I will eventually get an intake, tune, dp, and exhaust however, that won't be until a few more paychecks arrive.

So I've been driving my car for a few months and not once did I hear the turbo. So I put in a forge spacer and that didn't last a week.While I was taking it off the spacer I put in the rev d diverter valve in. I keep driving it completely stock and decided to be an amateur and rig up the auto zone special intake in hopes to hear those sweet intake sounds. Windows up or down I still couldn't hear the intake. However, I did hear the dv flutter. I scanned for some codes and came up with nothing.

There is no heat shield. I understand what I've done just let me remind you this was an experiment and this is no longer on the car.

I put the stock airbox back in with a K&N high flow filter. I let the computer adjust then went romping around shifting at 6k with the windows down. Sure as **** no turbo swooshes.

Am I missing something? I've tried three different filters and one different intake style, still came up with nothing. Just to be sure I scanned the car again and no codes came up. I am now less concerned about the silly sound I once wanted, but now concerned if there is something wrong with my car.