.........Having done that I'm now wondering about locking wheel nuts. Do people still bother ?
Yes, it's part of the factory fit security system, if not replaced you will need to inform your insurance company.
MGF wheels don't fit many other cars but the kid in the rover 200 doesn't know this and the chav after your expensive tyres doesn't car as he will be fitting them to the wheels from his Astra.
I originally fitted MGZS tweeters that are fitted into the panels that cover the corner of the window where the door mirrors fit.
As I had a mk1 MGF there was no extra wiring but I found that the tweeters connected to the main door speakers using secondary terminals on the main speakers. Luckily I had already replaced the manual mirrors with electric ones, but again I had to add the wiring, this time all of it.