An automotive fastener for coupling a door trim panel to an interior door member, the automotive fastener comprising: a grommet including: a grommet head, a barrel extending from the grommet head, and a central aperture extending axially through both the grommet head and the barrel; at least one retention wing extending radially outwardly from the barrel and upwardly toward the grommet head; at least one barrel slot separating a distal end of the barrel into at least one pin retention pawl; at least one barrel groove providing a thinned wall portion of the barrel extending from an upper end of the barrel slot; wherein each pin retention pawl includes an inner retention tooth comprising a lead-in ramp surface facing toward the grommet head on an interior side of each pin retention pawl and a lead-out ramp surface distal of the lead-in ramp surface and facing away from the grommet head; a pin including: a pin head and a shaft extending axially from the pin head; wherein the shaft comprises a recess receiving the inner retention tooth, with a pin head facing surface positioned and designed to engage the lead-out surface and displace the pin retention pawl radially outwardly during removal of the shaft from the central aperture of the grommet, and a distal-facing outer surface positioned and designed to engage the lead-in surface and displace the pin retention pawl radially outwardly during insertion of the shaft into the central aperture of the grommet. a grommet including: a grommet head, a barrel extending from the grommet head, and a central aperture extending axially through both the grommet head and the barrel; at least one retention wing extending radially outwardly from the barrel and upwardly toward the grommet head; at least one barrel slot separating a distal end of the barrel into at least one pin retention pawl; at least one barrel groove providing a thinned wall portion of the barrel extending from an upper end of the barrel slot; wherein each pin retention pawl includes an inner retention tooth comprising a lead-in ramp surface facing toward the grommet head on an interior side of each pin retention pawl and a lead-out ramp surface distal of the lead-in ramp surface and facing away from the grommet head; a grommet head, a barrel extending from the grommet head, and a central aperture extending axially through both the grommet head and the barrel; at least one retention wing extending radially outwardly from the barrel and upwardly toward the grommet head; at least one barrel slot separating a distal end of the barrel into at least one pin retention pawl; at least one barrel groove providing a thinned wall portion of the barrel extending from an upper end of the barrel slot; wherein each pin retention pawl includes an inner retention tooth comprising a lead-in ramp surface facing toward the grommet head on an interior side of each pin retention pawl and a lead-out ramp surface distal of the lead-in ramp surface and facing away from the grommet head; a pin including: a pin head and a shaft extending axially from the pin head; wherein the shaft comprises a recess receiving the inner retention tooth, with a pin head facing surface positioned and designed to engage the lead-out surface and displace the pin retention pawl radially outwardly during removal of the shaft from the central aperture of the grommet, and a distal-facing outer surface positioned and designed to engage the lead-in surface and displace the pin retention pawl radially outwardly during insertion of the shaft into the central aperture of the grommet. a pin head and a shaft extending axially from the pin head; wherein the shaft comprises a recess receiving the inner retention tooth, with a pin head facing surface positioned and designed to engage the lead-out surface and displace the pin retention pawl radially outwardly during removal of the shaft from the central aperture of the grommet, and a distal-facing outer surface positioned and designed to engage the lead-in surface and displace the pin retention pawl radially outwardly during insertion of the shaft into the central aperture of the grommet.