Hey I know you....
The turn signal indicator sound is not a mechanical turn signal like in the old days,
In the 08+ KK it is an electromechanical relay on the circuit board of the instrument cluster which produces audible clicks that are used to emulate the sound of a conventional turn signal or hazard warning flasher.
So you will not find it easily, to wrap it, sorry to say.
Same thing with the door ajar chime.
They can not be disabled and the noise maker can not be removed from the cluster without damaging the computer board. Clusters are not cheap and they are computerized. The cluster is involved in the control of many aspects of the rig, including the radio, A/C, turn signals, lights, ignition, mileage, EVIC, and more.