18 gauge is fine. I think that you need to find the factory wirering for those speakers in order to get them to work. I think that your front ones are being ran off the factory amp. But I can't be sure without looking at your car you know. That seems to be the only thing that it could be from what you've told us.

 

My new speakers don't have factory wiring there pioneer ones.. Or do they?

 

Thanks for the site stan... Your right they have really good prices and a lot of stereo equiptment.

 

I mean find the factory wires that should go to them and use that to power them.

 

Where am i supposed to get the factory wires? It never had any going back there.

 

If they are the speakers by the passenger seats, there ought to be a harness in there. Hell, maybe it is down in the panel a bit.

 

I am 99 percent positive theres not a speaker wire there. I looked everywhere.

 

well find the stock amp and follow the wires to see where they go.