hi, just looking at buying an early L322. Some have a screen with sat nav and other info available, some just have what looks like a simple radio installed. Is it possible/easy, to upgrade the latter to the former. If I was to get the screen/head unit. Is it plug and play, are are there a million other bits fitted to a car with factory fit screen that means it would be a stupid idea.
Cheers all
Cheers all