December 4th, 2015 
			        
        
        
        
         
        
            If there was any problem with the factory radio, you might have a speaker problem that the radio is reacting to.  A short in the wire or a grounded speaker or wire lead can cause  
             
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			December 3rd, 2015 
			        
        
        
        
         
        
            Check out this page for speaker sizes and applications.  Not all trucks are covered and the info is general for the semi.  Good rule is to pull speaker and  
             
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			November 30th, 2015 
			        
        
        
        
         
        
            That stands for Mike 2 input plug.  Make sure you do not have anything plugged into that input on the back.   
             
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			November 14th, 2015 
			        
        
        
        
         
        
            Some radio are direct plug and will not need a harness.  Most radio come factory with a hardwired pigtail as a  
             
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			November 14th, 2015 
			        
        
        
        
         
        
            That is controlled by the factory radio and no aftermarket company will have  
             
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