xplod is not the greatest i personally own 2 12" xplod subs and they were ok, but after awhile i wanted more. For u it sounds like your not a huge stereo person so i may recommend going with something cheaper and getting something that is only ok. If you are looking for something that is going to rumble your neighbours house then yes i agree with the other suggestions. As for amp mounting go with the usual and slap it on the back seat or even try on the box if u can. Good luck and keep in mind more money usally = better sound but if u really aren't looking for an amazing sound system and just something with a bit of kit i would go with that deal because it is very cheap and could give u what you need depending....