I am sorry that that nissanforum.com and nicoclub.com could not hep you. Anyway, your fuel pump relay is not behind the radio, rather it is behind the left side of the dash.
My understanding is that you could hear your fuel pump turning on, right? If you could, your relay is probably be okay.
Do me a favor. When you finish check the relay, check the EGR valve for me. GA16 has a tendency for plugged up EGR valve which will cause not starting. Try that.
Here's a guide on testing relays, it will help
See the diagram below for the location of the fuel pump relay
Wednesday, November 19th, 2008 AT 1:02 AM