Problem with speakers

[S_123]

One of my speakers in the drivers door seems to go nuts when there's a bit of bass.
It has a standard speaker cover on it, and it just doesn't stop rattling.
When I took the cover off it was going crazy to the bass.
So I took the cover off the speaker in the passenger door and that doesn't even vibrate.

Does this mean the passenger door speaker is blown and all the bass is going through the drivers door speaker?

 

[MT AUDIO]

have you put new speakers in?sounds like they are out of phase..

 

[S_123]

I bought the car a couple of weeks ago and a new soundsytem was fitted a couple of weeks before I bought it.
I just want to stop the horrible fuzzy rattling! AHHH!

 

[MT AUDIO]

if you have no bass outta one and then lots outta the other then it does sound like it,switching the wires round on 1 speaker will cure that,will reduce the bass to that one speaker

 

[S_123]

if you have no bass outta one and then lots outta the other then it does sound like it,switching the wires round on 1 speaker will cure that,will reduce the bass to that one speaker

Ah right thanks.
Can I switch the wires around or do I have to take it in?
If so which wires?
(Sorry to sound dumb I know nothing about speakers)

 

[MT AUDIO]

have you just had the woofers replaced?the ones in the bottom of the door?if so take your pick which 1 you wanna touch,remove speaker grill, then dc the speaker terminals and then the terminals need to be switched round,you may have to cut them off and replace them,plug back in,jobs a good'n