Hey Ga, don't back away. Input is what I am looking for brother and if you think of anything else, I want it. What does OP stand for? The 20 buck investment, is that what I can get from Walmart? I will head that way right now. How reliable are those? I have read so much info on them that the wires are crossed. What has been your/yalls experience with them. Any particular brand better? Thanks brothers and sisters....