This is the way it is on my TCS:
The prop rod is anchored on the inside of the front trunk in a hole with a grommet on the passenger side at approx. 4 3/4" down from the lip of the trunk and 2 1/4" from the passenger side of the trunk. The hole in the bonnet is approx 10" from the rear edge of the bonnet (when closed, the edge closest to the windshield) and in the center side of the bonnet. The prop rod is about 1/4" D so the holes are large enough to accommodate the proper size grommet.
An S2 may be on a different side but the geometry should be very similar.
Here are some pictures.