FASS FA F15 125G - Manual (Page 13)

G. Cut off the power lead terminal. Using appropriate tools, crimp the
Butt Splice to the factory power lead and the WE-1001. Shrink blue
cover with an appropriate heat source.
F. Route wire harness/wire extension along the frame rail to factory lift
pump. Remove the power lead from the factory lift pump.
F. Route FASS wire harness/wire extension along the frame rail to factory lift pump. Remove the power
plug from the factory lift pump.
G. Cut off the power lead from the factory plug. Using appropriate tools,
crimp the Butt Splice to the factory power lead and the WE-1001.
Shrink blue cover with an appropriate heat source.
Factory power plug