yeah i'm old and sloppy but being stressed out doesn't help ,somebody's always pulling my tail.my friend i sold a car given to me for $200 . has been draining my brain to help him fix it verbally.he doesn't want to listen and is deaf in both ears so that's my pet peeve.i have a brand new hearing aid never used but he will not use it .I fact i have two of them.his friend says he needs a compressor .i toldd him every time some one told them that i proved them wrong.He was just low on Freon.he's happy as a lark and save $200 . buck s where my diagnosis fee?for correct advice????i was a glorified handyman tradesman for over 30 years.