Tac module and gas pedal

[Dustytrix]

I went where the old cruisecontrol wires entered the firewall

[HRV-LS1]

If I enter through the hole where the gas pedal cable is, where's a good place to get a grommet?

[HRV-LS1]

I'm going to try to drill a hole where the gas pedal cable comes through the firewall. Here's a picture of the DBW cable and its size. I need help finding a rubber grommet for it. It looks to be a 1" 3/4 diameter. Any help would be great.