[FAMU83]

Try to find a a rubber plug underneath your dash on the battery side, drill a hole slightly smaller than the diameter of you power wire. Then run your power wire through that hole so you can have you wire inside the car. Run the wire under your side panels and then in the trunk or where ever your sub will be. Once the installation is complete go back to your hole and apply some silicone to make sure it is sealed. If you have to drill through the firewall then use a groumet and still use silicone to seal it up. Be very careful where you drill so you do not hit any other wires or whatever on the other side. By the way that is a great H/U and I'm sure you will enjoy it.......Good Luck.....