bobby90gt

What's up everyone I just bought my first mustang its a 1990 gt. And I absolutely love it.
I've done some small things to it so far but theres one thing thats bugging me.
When I got the car the fog lights worked I installed hid head lights the other day and now they don't seem to work so is there a way to fix that they must be wired into the old harness that's not being used because of the hids any help would be helpful
Thank you