I will be mounting a Whelen Liberty on my ‘09 Crown Vic Police Interceptor and need some guidance on the actual drilling of the hole for the lightbar wires. I am planning on redrilling the original hole (it was repaired with a metal patch) and running the wires through there. I understand I will need to drill a 1” hole, but will I need to add a rubber grommet to the hole or just use silicone only to seal it? Any recommendations on a specific type of silicone?
Really appreciate any guidance on this.
Really appreciate any guidance on this.