Eclipse XA 1000
Eclipse SW7200
connected in parallel... so its 1X480wrms and the sub is 500wrms

my wire:
4gauge from battery to a splitter (around 15-20feet)
split in 2 8gauge:
one for my orion 4channel amp
the other for my Eclipse

My orion is grounded with a 8gauge (2feet)
My Eclipse is grounded with a 4gauge(3-4feet)

My remote is from my unit (Alpine 9853 , splitted (tapped) to each amp... not a low gauge... don't know.. maybe 14 or 16 gauge ?