I just went out and had my wife to turn on the ignition while I listened at the gas filler. It is not very loud and just made a small gurgling sound for several seconds.
I believe the relay is located inside on the passenger side just to the right of the radio. You can access it by removing the kick panel under the glovebox.
I don't know how to test the relay with a meter, but you might try prying the cover off the relay and clean the contacts.

Another item to check is to make sure the torx connectors for the ignition control modules are tight. They are located on the front and the back of the intake manifold.

Hope this helps.


Jimo