For something like this pictured, the side sub box, How would I fill the gaps (ie. the black part around the outer box, b\t the trunk and the box)?
I have mine roughly cut out to the shape of the side of my trunk, but there's still gonna be some small gaps. So I'm just lookin for some ideas on how to fill those gaps??
How did the one in the picture fill the gaps? (ie. how to measure & make the black part that surrounds the silver part)
*Hopefully you undertsand what I'm trying to say*