My Ranger is a basic model. In fact the radio I'm taking out doesn't even have a tape or CD feature. I'm installing rear speakers into the blank cutouts. My question is that when pulling the wiring socket from the back of the radio it appears to have the rear wires but when looking into the cutouts I can't find any, do I need to run new wires? Thanks in advance for any and all replies.

 

I would run new wires regardless, stock wires tend to be pretty small (24g)