Kicker Solo-Baric L7 S15L72 Car Subwoofer "surround sound messed" Questions

...sound like its breaking wind i've checked everything the surround isn't torn anywhere. you can actually push on the speaker and it has plenty of movement. please help me is there some special way to ...

...surround (the outer ring that allows the speaker coil and cone to travel in and out, usually made of rubber or foam rubber). This isn't necessarily super difficult, it just takes some time, ...

12" kicker l7 i was playing music then the sub stoppd workin... i took it out the box.... it doesnt move up and down freely... but i was messing around with it and put wd40 in it and it beat 1 time ...