I recently had some body work done and had to replace a rear driverside taillight assembly. I did not buy the expensive OEM one and went with an aftermarket model. After installation I noticed that with headlights off, everything is hunky dory but once the driving lights or headlights are on, everything works, but the blinker blinks really really fast. I have seen this when one (front or back) is out but not when everything is working....What gives?