[ctuna]

The dynavin N6 is the only Head Unit that will work
with the L7 amplifier and you have to buy a adaptor
from dynavin to make that happen. I don't know if the
adaptor will work with other Head Units you will have to talk
to dynavin about it.
Basically you have to ditch the L7 amp with any Head Unit other
than the N6 as far as I know.
The optic cables are part of the Most Bus other things can attach to
it such as PDC or BMW Sos and phone control.
By not using the OEM amp your sound quality will suffer as the stock amp
in the L7 system has 9 channels as oposed to the 4 channels coming out
of the dynavin head unit. If you are going to do this you should get the N6
and the proper adapter.