Hey guys. I have a 2003 S Model Disco. For some time I have had a set of factory fog lights and bumper caps installed off of my '04 parts truck, they're hooked up and everything, but I can't seem to get them to work. I'm almost tempted to just rewire them, but I figured I would give it a stab here on the forum first. Do I need to install an extra relay? Where does the switch out of the '04 go in my '03? I only found one plug in the dash that it will actually plug into, but it didn't do anything. Thanks guys!

 

Yes on the relay, in the under hood fuse box I think. Fuses too if they aren't already there. You'll need both fog buttons from the parts truck. Then you might need to have the BCU reconfigured to know the dogs are install.

 

You also have to install a new rear fog light switch. On the S model the rear fog light switch is on the top left, but when you add the front fog lights that is where the switch for the front goes. The top switch is shaped a little different than the switches that go below it so you need to pull that rear switch from your parts truck as well.

 

I did say both buttons.