m3
								
							
						
						
	
						
							
	
						
					
					
						
	
					
				
				probably been asked already but here goes,
when repacing a mk1 172 head unit, are there any special features that a potential replacement must have in order to work with the column control?
or are there only a select few
many thanks in anticipation
matt the cat
 
	             
						
					 
 
		 
 
		 
 
		 
 
		 
 
		