Name That Tune - Round 6 Mystery Cache

And now, on to the next round of Name That Tune...
** THE CACHE IS NOT AT THE POSTED COORDINATES **
You should know the routine by now, but the upcoming rounds may include a new twist or 2
Just like the earlier rounds, you will be supplied with one or more lines of song lyrics, you must guess the song title and use it to solve the puzzle.

"...But only in you I'm complete..."

Use a simple substitution to transform each letter in the song title into a number (a=1, b=2, c=3, etc.) and plug those into the formulas below to find the final coordinates:
N 42° 00.ABC W 087° 53.DEF.

ABC = 22 + (5th letter * 6th letter * 2nd letter * 5)
DEF = (1st letter * 3rd letter * 4th letter / 5) - 40