The most reasonably priced component used on the Civic 2004 (4) 4dr Lx Side Srs (ka) Grommet (under) is the Blind Plug 2, 15.
Of all the components used in this assembly the Protection, T/gate is the most expensive.
The four Civic 2004 (4) 4dr Lx Side Srs (ka) Grommet (under) component parts are all listed in this schematic.