Relay socket help
 

I just finished replacing 2 fuel pump relays and sockets due to the all too common 930 fuel pump relay overload situation. I installed 2 inline blade type fuses and now I am having a bear of a time getting the relay sockets into the holder on the fuse panel. I am able to get half of the socket seated, but for the life of me cannot finish the install. I have tried spraying with wd40 to no avail. I was thinking of "softening up" the socket with gentle heat from a heat gun, but was advised against it. Does anyone have any suggestions?

I was just able to get it with a combination of very brief heating with the heat gun, WD40 a lot of grunting, and prying with a flat blade screwdriver. Couldn't do it without the heat- even though it barely heated the socket up, just enough to make it more pliable (less than 15 seconds or so).