range rover air suspension compressor

I have a 98 ranger rover 2.5 dti, it come without the EAS. So I got myself one of ebay, the problem I have is the pipes have been cut so I do not know which holes, ie 1,2,3,4, there goto. Have google this and came up with nothing. Need to know were the front right goes to, front left goes to, rear right goes to and the rear left. I mean which number on the EAS.
Please help someone

Get yourself a copy of RAVE, you are bound to need it for more than just pipe locations.