I've heard the Basslink. I think it was in Zadam123' VX. It sounds really good.

I have purchansed a cheap (PLTBA12) Pyle sub with built in amp as a stopgap until I build an enclosure in the rear door. It cost me $94.00 delivered from an ebay delear.

I'm getting it installed next week. The only problem is that I did not realize how big the enclosure would be, but it should fit in the back behind the seats.