Mercedes do similar! Normally required software and hardware changes, things do seem to vary country to country. The best way to check if unsure is too look at the installation PDF on the manufacturers site and see what connections are listed.
Just found this, its a pioneer can't remember the model but my mate had the same one in his Supra. Alloy front, nice build, no tacky features and very nice sound to it.
I am looking some aftermarket ''In-Dash GPS & Entertainment System with Motorised Screen '' , would something like this purchased from the US work on my UK Z4 (other than not having the correct DVD Nav Maps)? is it hard to get a hold of the european maps and load it into the unit if i imported one from the states?
Just found this, its a pioneer can't remember the model but my mate had the same one in his Supra. Alloy front, nice build, no tacky features and very nice sound to it.