What I did was get a long thin flat screwdriver, wrap the tip in electrical tape, or some kind of protection as to not scratch the inside of the lens or any other part. Insert the screwdriver where the amber light twists into. Then try to get at the part of the amber reflector where it sticks out..just poke at it until it snaps.. it helps of you could get a good grip on the reflector and push up as it releases from the two mounthing tabs at the bottom. Crush the reflector into as many large pieces as you can as to get it out throught the hole where the amber light goes in using long needle nose pliers. Do not crush the reflector into small pieces as it would be hard to collect all the pieces out of the housing, just enough to get them out of the entrance of the blinker amber light. Have patience and a small powerful vacuum will help also. My two headlights took a total of 45 mimutes ..and most of that time was trying to figure out how to do it to begin with. If I couldn;t do it without drilling or etc I decided not to do it at all...but luckily I found a way.
Thanks
Eric