I installed Burstbuckers 61 - sounds VERY phase like/thin - what is the correct wiring?

[The Witch-king of Ama'r]

I have a 2003 Les Paul Classic (no coil split).
Bought a used set of "Burstbucker 61r and 61t".

What I did:
- Each has one RED wire.
I soldered these to the volume pots, to the very same lugs where the stock humbuckers used to sit at.

- Then each of them also has a BLACK and a "SILVER" wire, intertwined / soldered together from the former owner, or from factory.
Those I soldered to ground (back of pots).

(There is also a sleave with a white and a green wire, that I haven't touched, since I think it is just the connection of the coils for option of coil splitting).

RESULT:
Very thin sounding. Not a question of taste.
Sounds like some sort of phase cancellation.

WHAT IS THE CORRECT WIRING?

 

[The Witch-king of Ama'r]

I found zero videos on the internet showing step by step installing Burstbuckers. Not even a PDF with an explanation / Gibson manual.

 

[El Gringo]

Try this wiring diagram for 50 wiring for a Les Paulhttps://www.throbak.com/50s-wiring-2-conductor.html

 

[Strings Jr.]

Does the thin, phase sound only occur in the middle position when both volumes are on 10, or does each pickup sound thin individually?

 

[oldog]

Gibson ads say that the 61R has " reverse wound, reverse phase windings to control hum when the coils are split". I would contact Gibson for a wiring diagram or instructions