I got a Sub! woo.

im real happy with it, but im just not sure how to wire it.
This is all the connections:

My radio is just the original rover radio.
So, without changing the radio, how do i hook this up? Ive got a pretty decent idea how to put the sound input in (left and right wires from both speakers into left and right phono inputs?), but im not sure where to wire the DC power from.
Thanks in advance.
And Merry Christmas :grin:
EDIT: Slightly better quality photo here:
