I went to replace the turn signal bulbs with LED bulbs on my 2015 961 SF and started with the rear signals. All went well, blinks a little fast but very bright and noticeable. When I completed the front signals and tested them the fast blinking changed to blinking and then a pause and so on... So I ended up with LED in the rear and the old bulbs in the front which is fine, I want to be seen more from the behind. Does anyone know why the LED bulbs worked in the rear (or one set of signals) but not in all the signals?