I got a 1996 dodge ext cab with the infinity sound system. The door speakers are shot and I wanted to replace them with new aftermarket ones but the issue I'm having is that the old ones had a 4 wire plug connected to it one wire was red then green then grey and the las was black which of these 4 wires can I splice into to make the speakers work

 

Hopefully this helps.

 

Thanks this helps hopefully I can make it work now just those extra wires on the back of the speakers threw me off