How would l install fog lights on a stock bumper of a 92-95 civic hatch? There is a grill in the pre-cut fog hole.
Is the grille connected with screws on the backside of the bumper?

Then get rid of the grille. Some of the fog lights are not a plug and play type deal when it comes to the installation.

There r fog lights specifically made for the '92-'95 hatchback, so ur best bet would be to get those. Otherwise, u will likely have to cut the grill, for space to put them. The grill is a part of the bumper, it is not something u can simply unbolt.

These r the ones that r made to fit on the bumper:
http://passwordjdm.com/PasswordJDM-EG-92-95-Civic-CoupeHatchback-Fog-Lights-Yellow-P1317C137.aspx

l am not saying that u should buy them from the site in the link, l am just showing u what they look like. You can probably find them cheaper on ebay, but there may be some wiring differences that you'd need to figure out (if l remember correctly).

all the info and pics you need here:
http://honda-tech.com/showthread.php?t=1303745