Cm870 swapped for a cm2250

[readsrepairs]

I have a project truck that I recently been working on. It's a 07 international 9400i, tractor came with a cm870 but had a hole in the block. I came across a great deal on a complete cm2250. So long story short is I've got it all installed in the tractor, but as some might know the wiring is totally different between the two. Next to buying a kustom harness has anyone ever wired this kind of set up before?