Have you tried it with the Soundaktor at it's loudest? I know it's not everyone's cuppa but if it suits you it'll save you a few £s.
I have no idea what that is mate 
I best Google!
Sorry, it's the fake engine noise generator. It sits outside inbetween the wipers and vibrates the windscreen to make the engine sound better/noisier (depending on how you view it). It's not overly popular but it might do what you want. The level depends on which engine mode you are in, loudest in sport. However if your car was not new and you can't hear it, it may have been turned down or even switched off (perhaps even unplugged).
