I assume it has the same blue/red dash as an '01 Golf, in which case I've tried both red and blue:

The blue display is nicer, but isn't a great match for the dash. If you're installing it next to the stock radio, this may be unsatisfactory. I don't have another head unit, and it looks fine on its own in blue.

The red display is more orange than the dash red, but is a better match for the dash than the blue.

Paul