So I installed sequential blinkers on the rear and flush mounts on the front. After seeing the hyper flash I immediately came to the conclusion that I needed to wire in a relay. From looking at TST industries they are selling a relay for 29 dollars but shipping that to Canada will cost me a bomb. So I ordered a 12v motorcycle flasher relay on amazon. However I am unsure which wire is positive and which is negative(i.e the black and grey) to tap into on the existing relay harness. In the TST industries video the gentleman seems to isolate they grey and return the black back to the plug but IDK. Any thoughts??