A circuit that links the DRL (blue leds), the turn signal (yellow leds) and the dipped beam (bulb):
Play with the switches and see what happens with the brightness of the DRL...
After a real-life check, I had to change the resistors dramatically to achieve the desired brightness of the DRL. Although it now seems the DRL are turned off when the dipped beam and/or the turn signal is/are turned on, the DRL I'm using still work.
(Installing this circuit in your car might require some finetuning of some resitors and/or the capacitor.)