Yes— big radio signals induce big voltages on long wires, which can do things like melt the input structure on ICs. Issues with this: Adding a long wire to yo

Yes— big radio signals induce big voltages on long wires, which can do things like melt the input structure on ICs. Issues with this: Adding a long wire to your protection device isn’t going to do much. Signals, not power, are the biggest concern in cars. You really need protection at the ingress of each device, and shielding of individual enclosures, to be effective.