i reckon SINISTR is on the money...

more specifically with the fuel pump relay you need to hear a CLICK at the end, after it has primed.

if it is quiet, esp if you are in a garage it is very audible and you shouldnt need to remove your rear seats (maybe mine is just louder, i dont know)

as he said its a very very common issue on da9's, however i dont see how it would result in no spark. usually with this problem you CAN get it started, it just doesnt keep running