Just replaced my factory Blaupunkt's with 4" two way Blaupunkt's.
Couldn't use he factory grills, though.
The new grill's just barely touch the dash, and for the window crank
clearance I added one small washer under the handle where the spline is.
This is enough to clear the speaker grill.
They handle 150 watts each, and sound good.

Later

Terry

85 GL