Mrs Funk to Funky's Little Problem Mystery Cache

Oh dear, oh dear! Mrs Funk to Funky has gone and forgotten the code for her money box and needs a bit of help to work out what it was. Especially as she has her collection of special gold pirate coins inside.

Luckily she wrote down on an old piece of paper some pointers to jog her memory should she ever forget the number:

Can you work out the code for her and then put them into the co-ordinates below to find her money box and her prize collection. PS Mrs Funk to Funky told me to tell you not to be put off by the fact that it's a number puzzle because she says it really very easy!

The cache is at:

N51 46.(Third number)(second number - fourth number)(third number - fourth number)

W003 00.(First number - fourth number)(third number + fourth number)(first number - second number + third number)

*** Do not forget to take the number for the code with you when you go for the cache.***

You can validate your puzzle solution with certitude.