well my speakers ar sadly blowing so i bought some new speakers today got everything apart and well i just need some help with knowing which wire is negative and which one is positive for wen i cut the old connector and switch it to the conectors for the speakers (car is still looking as stock as possible) thanks

 

Use a volt meter it will show negative on the ground side.

 

ha thanks for the tip but i finished installing them last night basically wat i did was just put the to wires together and saw if the bass speaker was pushing out or sucking in on the bass parts but i will defenetly remember that next time