Can anyone tell me the mounting dimensions for the rear speakers of a 1996 Audi A8?

I want to replace the rear speakers and im away from home right now, but want to order them on-line.



All i need to know is the speaker mounting dimensions so that i can drop the new ones straight in the original place.



I know theyre approximately 170 mm but really need to know for sure.



Many thanks.Can anyone tell me the mounting dimensions for the rear speakers of a 1996 Audi A8?Contact crutchfield, they will have the answer.