This particular kit comes with 4 3D Printed components
Fits into the OEM Clock area, The Grey part in photo 2 is to be located in the clock recess, you can then trace around with a scribe, dremel and cut the section out precisely and then fit the recessed interface, Fit the Keypad, Fit the backplate and nuts, tighten lightly till there is no movement, be carefull not to overtighten and break the 1990s Speedo surround!
Original Clock must be removed of course & the speedo surround trimmed ( Check out other products for a plug and play option )