Had the eonon for a year before I scrapped the car and sold the unit.
Found it grand and really fit within the dash. As in it "looked OEM"
The NBT is the ultimate endgame but not in this jurisdiction with those robbing bastards and the road tax that they want.
E39's (bar M5 and possibly 540/6) are worth nothing.
And for that reason any expensive ice that's tailored to the car is a waste of money unfortunately.