I did manage to find the speaker after taking the inner panel, found the wires blue/orange, and yellow going rearward, but can't find them in the interior.............

Your doing better than me, if you found the siren speaker.....I ordered the car with the siren speaker from the factory, I know it's on the left side around the headlamp, I can't find the speaker, or the wireing I've got the air box out, and still can't find either......