Well I am lining my next mod up for the car but I am stuck between two choices right now so weould appreciate if you guys gave your opinion.
The first upgrade is these bad boys and thanks to DogSoldier who pointed me in the right direction in what to buy.
In Phase XTC420 4 inch 160W 2-way coaxial speakers 10cm - XTC420 from In Phase
Basiclaly as ther standard audio system is gash in the E60 although have heard rumors it can mess up the sat nav, I need four speakers so its going to come to £80 quid. But may also install additional tweeters in the rear can I just splice the exisiting wires and run them to the tweeters also or do they need a new feed?
The second choice is a M Sport boot spoiler as my car never had one and want to get around to getting one and probably will sting me around 80 quid also.
I am 50/50 at the moment although a guy I work with tried to persuade me saying I spend a considerable amount of time driving to/from work everyday and will benefit more from the speaker upgrade.