Wiring an overdrive harness

[Lizirbydavis@cs.com]

Is it safe to double up the white (switched) wire on the overdrive harness 
with another lucar clip at the fuse block?  There just aren't enough terminals 
with my electric fan and radio.  The harness I received from Quantum mechanics 
has an end that doubles back into a second spade.  It looks like it was 
designed to double up with another spade end.
Joe Davis