Becker Map pilot - what version?

[colin23]

Hello. Sorry for my english.

In my W176 I have becker navigation package preparation. I want to buy Becker Map pilot Box.
I found a few versions of this:

A 166 900 30 09
A 166 900 87 08
A 166 900 00 01
A 166 900 95 08

Probably every match to Mercedes A. What is the difference? Which best?

Thanks