My MK IV will show splash after unlock, dont have to open dor. What you nead to think about is that MK IV neads to turn it self off before it will show splash (that happens aprox. 15min after locking car)

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X5 4,4i-06 Current
330Ci Cab-03 2007-2008
MB E55 AMG-03 2006-2007
Z3 2,8 Roadster-98 2006-2007
X3 2,0d-05 2005-2006
320d-99 1999-2005