I am changing stats I have a simple 2201 and replacing with a Hunter 42999B I have seven wires to deal with colors are yellow.red,green,orange,white,blue,and black which I don't think was connected. The hunter has a red jumper already in place and has connectors for the Green,White and Yellow,has a red jumper wire going too RH RC connectors. Please advise.
Ron

Why are you changing tstats, is something wrong with the one you have?
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My advice is ti don`t waist your money on a Hunter,, they are junk,
If it works at all ,6 months ,maybe a year at the most is the life of Hunter
Pay a little extra and get yourself a Honeywell