i had to "reset" my head unit the other day (CDA 9815), and I was wondering what frequency my door speakers and the speakers behind my head should be set at. Also does anyone know the measurments for the Z so that the drivers seat is set up without a "lag" in music
Door: Alpine SPX-177A component 2 ways
Behind Seat: SPR-174A coaxial 2 ways
thanks,
andy