That will be fine, as long as you make sure none of the strands of wire can "stray" over to where the +12v connection is. Make sure it is clean and tidy and you don't have to use a connector.
Bob Johann
SoundQ SVT
1998 T-Red SVT Contour #3088
2001 IASCA Pro Street 1-600 Champion
2002 SLAP Pro Street 1-600 Champion
2002 MECA SQL Master Class Champion
2003 IASCA StreetX 1-600 Champion
2005 SLAP Expert Street Champion