What source for these parts?...96 XJ and I need to get a new cabin fog light switch a

96 XJ and I need to get a new cabin fog light switch and hi-lo beam switch (lights are going out when in hi beam, don't know why), and a relay, and I'm wondering where I should go to get em. I've heard some parts stores are better on electronic parts than others. Locally I've got Car Quest, NAPA, KOI, O'Reilly's, Autozone, and Advanced. Of course online ordering is always an option.

Any suggestions? Thanks

The fogs are supposed to go out when the high beams are on. Or are the head lamps going out? JIM.

I found my fog light switch on E-Bay