If you put a diode as described in posts 52 and 60 in the blue and purple wire, the ECU will never receive a signal from the button and hence won't lock the doors. I use the button all the time and have never seen the doors lock. The wiper works normally and so does the key and button. If you want to keep the wiper, I highly recommend using a diode. Take care,Because when the switch connects the blue and purple (same as inserting the key in the rear door keyhole and turning right) it locks all the doors, which means you then have to unlock the doors again after you use your button to pop the window. Disconnecting the brown/red stripe prevents the rear door ecu from sending the lock signal to the body ecu so that the doors don't lock when you push the button. My fob still unlocks all of the doors including the rear door. The only functionality lost in doing this is that the keyhole in the rear door no longer locks/unlocks the doors, and it disables the rear wiper. I don't like that it's not a perfect solution, but since I hate rear wipers anyway, I just removed my wiper.