Boston Acoustics RX57DIN - Manual (Page 10)

8
Installing Speakers In Nonstandard Locations
Check the clearance of both speaker locations. Your vehicle may not be
symmetrical. (There may be multiple window controls on the driver’s
side, for example.)
If installing in the doors, remove the interior panel. Avoid possible
speaker contact with door frames, handles and window tracks. Check
the window clearance by rolling the window up and down. Also check
for clearance with the door open and closed.
The Boston Rally Series speakers are heavy, and must be held in
place by a strong, rigid structure.
Check for signs of excessive water leakage inside the door. If the
door has a plastic moisture barrier, cut a flap to shield the speakers, or
make a flap from heavy sheet plastic and attach it to the inside of the
door above the speaker.