2. Installing midwoofer
Take the grill-bracket
of the GZRC 100FX and use
the BMW speaker as
a center mark template
Use a 3mm
spiral driller
to pre-drill 3 holes
Use a 5mm
spiral driller
to enlarge
each bore-hole
3mm spiral driller
for pre-drilling
5mm spiral driller for
enlarging the bore-holes
-5-
Use 8x M4x16 screws incl. screw-nuts and
fix the midwoofer as shown at the pictures.
To get the best result, you should put some
foam sealing strip at the front of the speaker as shown below.
