dont put em on your parking lights. Put em on their own switch. Just grab power off the batery...ot even an empty fuse and run the switch into the car...i got my switch drilled under the steering wheel.
if you want em in the blinkers...all you need to do is splice into the wire that goes to the blinker, since that is on with the parking lights....then when you blink it should blink...my friend did that.