through firewall grommet/hole with room to spare

[Wallythacker]

I'm going to run the power cables for my Hf/Vhf/Uhf radio directly to the battery. It draws ~23amps at full power so I need a direct connection.

Does anyone have a suggestion routing the cables through the firewall? Is there another hole in the firewall I can squeeze my power cables through and preserve the rubber grommet and not interfere with anything that moves?

TIA

edit: I'm guessing the cables are about 12 ga. which seems a little light for 23A.

[inuvik]

I'm going to run the power cables for my Hf/Vhf/Uhf radio directly to the battery. It draws ~23amps at full power so I need a direct connection.

Does anyone have a suggestion routing the cables through the firewall? Is there another hole in the firewall I can squeeze my power cables through and preserve the rubber grommet and not interfere with anything that moves?

TIA

edit: I'm guessing the cables are about 12 ga. which seems a little light for 23A.

Yah, that's drawing close to 300 watts of power using 12.5 volts as average.