This is my first post on versa forums and I was looking for some input on my system. So far I have my stock head-unit w/ stock speakers. I have a "1400W Class A/B 2-Channel PZT Power Zone Series Stereo Car Amplifier" along with a 12 inch G1 Boston sub. I would like some input on the quality of the amp/sub and what anyone would suggest for a head-unit and speakers. I have found out the hard way that not all head-units fit in my versa.