I thought i'd try something else last weekend, a USDM rear light conversion (edges of the rear lights light up)
Sorry there is not a huge amount of detail, hopefully the pictures will
speak for themselves.
So first i removed the rear lights
You can see where the bulb holder is meant to be in the molding
I put a starter hole into it, so it would be centered.
Then i drilled the correct size hole
As you can see, you will need to file the light mould to fit the bulb holder.
All fitted flush
Then simply wire the bulb holder to the tail lights (black is earth, red with a white pin stripe is the live)
Result....
Sorry for the poor pictures, weathers been poor and been far too busy
:x