One option might be to print only the front portion (as a cupholder or speaker pod) and have it attach to just the front 4 screw holes. The carpet panel could be cut there and use the other 4 or 6 of the 8 holes, with the printed part overlapping the carpet. The chrome trim strip complicates things, but I think some panels don't have it(aftermarket?). That could be a portion the user trims with a knife if they have that strip.

