Two possible results depencing on which end goes where.
1) If the RCA plugs go to the output of the DVD player and the tinned ends go to the speakers then it simply won't work. You'll need an amplifier.
2) Thus would mean you are connecting a speaker le el output to a line level input. Not a good thing. You may overdrive the unit.
Of course, not knowing your pareticular unit, where those RCA jacks are and what that particular unit puts out of those jacks, these ideas may be off base. I'm just going by what most units do and, according to that, it doean't look too promising.
Some more info on the DVD player itself may be helpful.