well i just had to buy it, never had one before thought it might be fun, myself always been into the hot rod boat stuff, i got a dumb question there is a button on the dash of my 97 rs above the hvac controls with the threeletters on it anyone can tell me what this is for. and what does it do, sorry to be so dumb

thanks

 

SGS = Second Gear Start; kind of self explanitory

 

thanks alot