This may seem like a simple question but I must beginning to get old. I am putting a new OEM wiring harness in my truck (under the dash) and I cannot push the electrical connector into the grommet in the firewall.

I tried putting the connector in the grommet and then putting the grommet into the firewall, that didn’t work. Use grease on the edges, that didn’t work.

Then put the grommet in the firewall and tried to push the connector into the hole and that didn’t work. This is the connector and grommet that come from the fuse panel through the firewall. Anyone got some advice?