You are correct about the headlamp washers being standard equipment on SRX Performance and Premium . Today, I got my wife to pull back on the wiper control while I stood in front of the vehicle to see what happened. When the windshield wipers and washers started, a small piece of the metal near the grill on both sides popped out and water sprayed the headlights, then retracted back even with the metal of the body. So that RPO code on my vehicle is correct. There was no V92 RPO code on my build and sure enough, there was no wiring for trailer hookup. V92 RPO code is for the Trailering package which includes the trailer wiring and trailer hitch. I had the wiring installed on mine at the dealer today and was charged $110.
Hope everything is hooked up correctly. I will hook up to my luggage carrier tomorrow and see if all the lights work correctly.