Amp Power cable through the firewall

[Seafog2023F150]

I need to get the amp power cable through the firewall on the passenger side. I have cut the nipple off the rubber grommet on the firewall that is behind the distribution box and was able to push a coat hanger through the second rubber grommet wall but can’t get the coat hanger to drop down where I can find it so I can tape the power cable to the coat hanger and pull it through. Do you have any ideas, tips or tricks to get the power cable through the firewall?

I found using silicone spray made a big improvement to getting cables through .
Starting with a metal coat hangar pushing through both skins , then attaching the cables , apply more silicone spray and pull through . Be very careful of existing looms .
Worked for me

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[robbiejames]

I found using silicone spray made a big improvement to getting cables through .
Starting with a metal coat hangar pushing through both skins , then attaching the cables , apply more silicone spray and pull through . Be very careful of existing looms .
Worked for me

Definitely sounds like this will work great