The cache is not at the given coordinates, solve the following puzzle to get the actual coordinates for the physical container
Each of these name sets has a Common Thread, figure out that and you should be able to generate the needed numbers to figure out the final coordinates
There is a slight twist to this puzzle where O = 0
Beach Boys, Mama's and the Papa's, Eagles
Ray Charles, Gladys Knight and the Pips, Charlie Daniels
Judy Garland and Bing Crosby, Carly Simon, Kristen Graves
Perry Como, George Thorogood, Fats Waller
Merle Haggard, Levon Helm, Brook Benton
Vicki Lawrence, Ben Bernie, Trisha Yearwood
Johnny Horton, Lacy J. Dalton, Maggie Rogers
Lynyrd Skynyrd, Jim Croce, Jerry Lee Lewis
John Blackburn, Tony Bennett, Sarah Vaughan
David Frizzell, Rodgers and Hammerstein, Bruce Springsteen
Saves the Day, Vic Sadot, Todd Chappelle
Loretta Lynn and Jack White, Laura Gibson, Dolly Parton
Neal Casal, The Successful Failures, City And Colour
Elvis Presley, ABBA, Morton Stevens

You can validate your puzzle solution with certitude.