Just the other day, i noticed that when starting the car everything seems to to very loud!

The starter motor, engine and the gear changes etc it all sounds as its coming out the speakers, but its sounds as if its coming from behind the dash in the centre? With the stereo turned off it still does it and this morning I noticed that the front speakers are not working?

Does anyone have any ideas? Only thing I have done recently was add a earthing kit and a new alloy pitch mount!

Thanks for any advice

S!