One can purchase car speakers and sub woofers from most car accessories stores including Halfords. They can also be purchased online at Argos and Amazon.
No it will not damage sub unless its raining or something.
It depends on the type; L5, L7,CVR,CXR Solo-X. The cheaper 1 is around $80.00 each. The upper price one is $699.00 each.
YES
Automobile speakers and sub-woofers (loudspeakers) are not that difficult to locate. Some box stores like Walmart and Best Buy carry a good range of automobile speakers and sub-woofers.
200 watts
Best Buy and other electronics retailers stock Pioneer sub woofers. The can also be found at Amazon and other electronics retailers on the internet such as Overstock.
its the same year round
No, but it is nice if you want to play loud music.
no they are called accustomass moduals and their way better
In the back pointing at back hatch
A Kicker cvr 10 or 12 inch DVC 4 ohm sub