keyless entry system installation 1994 e320 convertible
 

Need help installing a keyless entry on a 1994 e320 convertible.The installation guide is not clear,I bought The Bulldog system from Pepboys for $40.00.Wondring where the wires are for lock and unlock input and output?
Is it easier to get these from the fuse box?if so which ones are they?
Is it better to get them from the vacuum pump?if so where is it and what color are they? also I understand I need 2 relays,where would the relay block be to plug them in.
Thanks

ATA module is under rear seat, passenger side.