If you should end up with a dead battery and you need to find the cause, like a draw in the system. First remove the dome light fuse because you'll be working with the doors open. Disconnect the negative cable and hook a test light clamp to the negative battery post. Touch the test light probe to the cable clamp and if the light lights, then you have a draw. Now just start removing fuses and unplugging added accessories until the light goes off. Then you found your draw. Common draws are the relays in remote door opening kits, and horn wires at the steering column going to ground. Clicking relays when the battery cables are connected to the battery are a good place to start looking first for a draw.
That about finishes the wiring installation-if you're smart you won't cut out any of the extra wires in the loom as you install it. Simply leave them zip-tied in the loom that runs along the bottom of the dash, and if you need that circuit or one for some addition you've got an ignition or battery hot wire ready to use.