Fitting a sub in the cabin of a B5 Saloon

[Shortie]

Hi guys,

I'm going to be starting a full blown SQ build in my Passat, and have already bought a sub (phase linear aliante 10) and an amp (Genesis P2 Ultra) to run it. My only problem is that if i mount the sub in the boot its gonna be pretty much inaudiable and a complete waste of an awesome sub. Any ideas where i can put it inside the car other than the passenger footwell? only needs a small sealed box of approx 0.6cu.ft.