varietyguy Posted December 5, 2011 Report Share Posted December 5, 2011 Do I need a relay to run 3 amps and a line driver. from my factory head unit. 1992 Mazda 323 http://www.stevemead...323-wall-build/ Link to comment Share on other sites More sharing options...
crunkjuice1 Posted December 5, 2011 Report Share Posted December 5, 2011 I would say yes Link to comment Share on other sites More sharing options...
JRminivan Posted December 5, 2011 Report Share Posted December 5, 2011 I would use one, I was using one with 2 amps and a line driver. Link to comment Share on other sites More sharing options...
KenC210 Posted December 5, 2011 Report Share Posted December 5, 2011 i run 3 amps and i use a relay. i wouldnt see it hurting anything the relay is not to expensive either Kids Cadi Power Wheel Build2007 Ford Escape Build2012 Toyota Corolla Build 2013 Toyota Tundra Link to comment Share on other sites More sharing options...
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