I am trying to install an amp and sub in my car but I need to know how to get wires to the trunk through the main cabin and to the car battery from the main cabin. Anyone have any personal experience with this?

 

From the head unit you can run the cables through the center console...under the pasenger side carpet and under read door sill ...try to pry the seat up a little from the side....stick a screwdriver in there to keep it open and run whatever wires you want through to the trunk. Connect the blue single wire to the positive of the speaker.

The positive terminal needs to go through the pouch that contains all the wires. Just poke a hole in there and run it through.

 

this might help a bit; there are pictures provided:

https://acurazine.com/forums/ramblings-12/sox-owned-136405/