Does any one know why all the wirring in my pajero would be wrapped in electrical tape?

It seems to have been done after it left the factory because it's as dodgy as and it seems to go in odd directions (you know, the long way around with kinks in the loom).

Is a possible reason for this that the previous owner has been messing about with it for shits and giggles or could there be something more sinister at play?

It is making it extremely hard to make room for a dual battery setup.
Any help comes with many thanks Thanks
