I'm new at cars in general and car audio but, as far as I know:
- You hook a [short] wire to the positive lead of the battery
- Put a fuse on the wire
- On other end of fuse, this is the main power wire that will go to the trunk so it has to be pretty long [but you don't want too much in excess]
- You have to get through the firewall [really don't know what it is] - you may have to drill a hole
- Then you run the wire under the carpet the opposite side of the speaker+rca cables and into the trunk - there may be some sharp metal in between
Like I said, I'm new and've never installed anything - only stuff I know is just through reading but it might get you started.
My main resource is
this site