What is a good way to run the battery power wire to a sub amplifier in the trunk? There is no way I found through the sound insulation. The drivers side has the clutch block off that could be loosened and fished through. Is there are grommet in place or common route others follow?

Currently I have it on a light jack, but that is temporary.

 

Best way is to drill a hole preferably at a safe point like the clutch block plate and place a grommet in the hole and seal with silicone. My 98 was a stick so I had to drill my own hole through the firewall.