Wire thru firewall- 2021 Rogue

[arogueguy]

Hello, I need to run a 1/0 gauge power wire for a couple of amplifiers thru the firewall. The two grommets I see are not the normal rubber grommets. They look like they have plastic inserts in them. One is on the driver's side and is on the passenger side behind glovebox. Is there an extra grommet in the firewall I can use? Any suggestions welcome. Thanks.