Splash screen comes up when nav is booting only.

So if you turn off ignition, and then turn imediately back on, you get no splash screen, as nav is already booted.

But if you unlock car, wait a bit for nav to boot, open drivers door - splash screen will show.

This is all linked to the boot process for the nav computer. Can't change it :-)

Glad you got your Mk3 working !! Yay....