First of all, you should buy a light from the GHIA model with the frame on Ebay:
We remove the upper light from the front and get acquainted with the enemy, we look for a place from which we can borrow electricity.
You need to prepare your wiring and plug-and-play terminals and a dry try-in as it will look at night.
I suggest you also cut out a small template the size of a cardboard lamp - it will be useful later.
Connecting adapters to the front lamp.
The proper assembly, the cardboard cut into a shape attached with a self-adhesive Velcro in the measured place.
Last tests:
The so-called "point without return" ... The pressure is going crazy
Of course, if you've cut yourself down like I did - first aid with a wipe and insulating tape can help.
The frame from the GHIA version is very cool, it has 4 retractable hooks, it snaps into place with no problem and keeps it.
First light fixture.
Now we will drag the cable. Well, there were 20 attempts, but I managed to hit and catch the wire from the front.
Job done :)
Good luck!