Even with a dead intank pump, the car can still run on the main. If the main is dead, it won't start. Even though it turns over, doesn't mean the battery is putting out enough voltage to fire. Volvos are funny that way. Time to get back to basics.
Do you have good bright spark? If so, ignition should be good.
Are the plugs wet or dry after you attempt a start?
Compression?
And spark at the right time. Had an 85 that was 6 teeth off, wouldn't start.
Have you jumpered the fuel pump relay and see if it will start?

You mentioned whine in Radio suppression relay. Really doesn't have anything to do with the radio. Just a crap name that volvo gave it.

Alot of these things are covered in the FAQs.
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Post Back. That's whats makes this forum work.