Thank you kindly!
This led me to another option using a piezo connected to the RKE relay. I'm more interested in the un / lock verify.
There's a slight concern about this in that it is altering the circuit which has connection to the irreplaceable skreem.
The theft alarm isn't so important to me since my $7k car is fully insured. None the less, I'd like the car to function fully.
But I guess I'm rambling a bit..