This is my third attempt at photographing the Andromeda Galaxy. I collected the data in late-September from my Bortle 7 back yard. My previous attempt last year was from a Bortle 3 zone. Let me just say that there is no substitute for a dark sky.
Processing out the light pollution posed a significant challenge.
Data was collected in an unattended fashion over multiple nights with Voyager. 
Details can be found on AstroBin.
Thanks for looking.
Glenn

M31 is a difficult target from light polluted skies, not for detail, but colour. Iβm struggling to get any blue out of my OSC camera for it.