Yes, the Bentley VW manual would help you disassemble the dash... however, this is not trivial and shouldn't be necessary.

I'm not sure how different the Golf console is, but I managed to install two HUs into my 2K Passat with minimal frustration. I installed my first HU into the top DIN slot, and a week later added the Empeg into the middle slot.

Things do get awful tight in the VW cage, but if you take your time and take full advantage of the few holes behind the HU area to stuff away as much wiring as possible, you should be able to finesse it all into place. Good luck...

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Empeg Mk. 2 #626, 18Gb blue | Kenwood KMD-X92. 2000 VW Passat wagon.