Anyone Upgrade their CECU Central Elect.Control Unit

Has anyone updated their CECU? (Central Elect.Control Unit)
I'm thinking of updating my 2008 Audi TT from:
8P0 907 279 H
To either K N or P

I have a VCDS unit and can handle the coding.
But I'm worried that some wiring changes might be
needed to keep my existing features operational.

Anyone tried this?
(I couldn't find anything with a search)

Thanks for any info.
Tony V.
Boston USA

Can I ask why?

Newer CECU's support new features not supported in the older
model year cars (eg led drl, interior lighting options ...).
Thus enabling feature upgrades (and cash expenditure).

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