OK here is the situation, my friend got a box recently and didn"t bolt down the box and today he was driving and the sub cut off, he went to check and found out that the power cable came off (easy fix) but the rca cables broke there prongs, now is there a way to fix this without having to replace the entire cable?

 

... invest a solid $10 cdn in new RCA's and sin no more my son

 

You can always add new RCA connectors.... but it is not easy does it. Then again, we cannot evaluate the strain that wire supported during the incident. So I would go with JohnVroom - change the wire and make sure you solidly fix everything down so it will not shift or move - especially for those times when driving hard...