sure
you will need to know what speakers you are using, and a general idea of what you want.
alpine allows:
2.5way
Front -- highpass
Rear -- highpass
Sub -- lowpass
3 way
High -- highpass
Mid -- bandpass
Low -- lowpass
likely, option 1 is correct for you.
from here you will have a variety of options.
I suggest lowering the volume of the system, espcailly the woofer. start with the settings:
4" mids -- woofer lowpass 120hz, front highpass 120hz, rear highpass 120hz
5" mids -- woofer lowpass 100hz, front highpass 120hz, rear highpass 100hz
6" mids -- woofer lowpass 80hz, front highpass 80hz, rear highpass 80hz
start with 1st order slopes.
from here, you will need to spend time listening and changing. ideally 15 minutes every hour, with the 45 minute break in between sessions.
you really should try a variety of settings on the slopes, and frequencies.
when trying high slopes, try a variety of level offsets (volume of front or sub on the crossover).
without more specific info, its hard to tell you what to do.
