You can use one of the rubber plugs that are close to the hood hinge on the driver side, or you can drill the hole yourself on the passenger side below he fan and as close to the fender as you can.
I did a write-up when I relocated my battery to the trunk. I have pics up there that show where I'm talking about on the passenger side. I originally ran the amp power through the driver side as I stated because my battery was in the front driver corner before.
{electrical} Battery Relocation Write-Up - GrandMarq.NET - Panther Headquarters
