After reading everyone's suggestions I'm going to put some 4ga wire in there. I have a few questions about doing that though. How should I go about getting the wire from the battery to my trunk? Right now I have it running up the side down the door and I have it going into the car underneath the little rubber tube that you can see when you open the door and from there it goes to the trunk under the carpet. Look under the dash on the firewall and look for wires that run through, usually you can manuever your wire into holes that are already in the firewall. Sometimes you will have to make your own hole. Another question is when I crimp the wire is it going to fit into my amp?4 gauge should fit your amp, if it doesnt, you can trim it or use a reducer.
I think I'm also going to try to come up with something to mount the amp on my box or the fold down back seats not sure which one yet I'm going to look into that more.
After thinking about moving my RCA jack so it's apart from my power wire I realized that I have my power wire and RCAs running to the truck together anyways so would that defeat the purpose of moving it? Also would it be a good idea to try and run the RCAs around the passenger side instead of the drivers side with the power wire? If you arent experiencing any odd noises/interferences, I wouldnt worry about it... But since you are already running new wire, might as well do it on the other side.