Mustang & Mark VII the same?

[NitroNixon]

Are the wire harness from a 87-93 mustang and 88-91 Mark VII the same. I know that the intakes are the same. I'm asking because I'm have a Mark VII 5.0 engine that I want to put into fox body stang. I have the wire harness from the Mark VII also. Could I use this or do I have to purchase a wire harness from a 5.0 stang?

Thanks for any replies.