The Hertz speaks are wicked bit of kit, I have ound that the BMW tweeter pods make a world of difference because they are at the correct angle for the sounds.
I had a slight issue in the rear due to the mounting depeth of the speakers, at present there fitted but im gonna put some dynamat behind them just to ensure no panel interferance.
As for the Bass, who said u cant get good bass from a cabby, Boody hell i really didnt expect great things, But I was in shock when i first powered it all up, the rear leather flexs when the subs drop and I was shaking my house whilst being parked on the drive way even the door kocker was tapping on the door, So im well pleased
Pic's to follow, Remember though its not a flashy install with loads of fibreglass or anything like that just neat and tidy so if u look inside u dont see nothing
ill get some pics over the weekend, nothing special really just neat and tidy (stealth) and bloody loud but clear 
