For many years, I have been using speaker switchers for my audio system, AB8SS to be exact.  I would like to add a pair of speakers at my shed in my back yard.   I ran cables out there in conduit a few decades ago and I don't believe I can run more.    Specifically, I have 2 un-used runs of RG-6/U that were intended for security cameras, but are no longer used.   Can I use those two RG-6 cables to run left and right speakers?   The distance is around 200 feet from the amplified source in the basement.  How, and what issues could I expect?
				
			 
	 
 
		 
 
		