I need to hook up a custom grill on my ride. where do I start to look for it.

Depends on what you want. Need just a touch more detail.....

By the way, you most likely wont find anything pre-made. Not a lot of custom Bonne body parts out there, if any....

Do you know where I can order a grill and make it myself?

Again, we'd need more info. Some folks have used the GutterGuard grill type stuff you can get at home improvement stores. Some folks have had some nice results with just a little paint.

You may be able to modify the grill inserts that are made for the GPs, depending on your year

What year make and model is your car also. even though there isn't too much change, there is a little.

Year and model always helps. And some more detailage.

Year and trim level in sig would help AND...............

Gutter Gaurd @ home depot.