Just get a cat stupid.
No need for poison.
Now you are killing owls and all kinds of innocent animals.
Or if you are scared of cats, get an owl box.
OR get owl rescue to come get the rats.
But hey. Poison. The rats will be back.
Had a friend with the same problem. Funny these rats like the more expenisive cars. Left the old landy alone. Chomped on the Merc. Lol.
And they do have jack russel dogs. Didn't help the dog just jumped against the car to get to the rat
Your average backyard mechanic would probably just use a few connector blocks, and most cars would be fine. To repair to the original manufacturing standard requires replacement of the wiring harness, and probably disassembly of the front end of the car. Sounds crazy, but that's how insurance works...