11. The method according to claim 10 , wherein said simulating step comprises propagating speech output from a position corresponding to the mouth of an average-sized human seated in the vehicle.
11. The method according to claim 10 , wherein said simulating step comprises propagating speech output from a position corresponding to the mouth of an average-sized human seated in the vehicle. 12. The method according to claim 11 , further comprising: providing a speaker arrangement to perform said propagating step; dimensioning said speaker arrangement to be seated on a vehicle seat and to propagate speech output from a position corresponding to the mouth of an average-sized human seated in the vehicle.