KiltedA4

So I'm planning on installing some fog lights this weekend. I have a 99 A4 with the fod lights built in to the heads. How should I wire my new fogs. Should I simply disconnect the existing fogs and run them to the new ones in the bumper? Or should I run them in parrallel together? If i go with parrallel can i simply cut the wire behind the headlights and run it down to the bumper or do I have to come from the fuse box? let me know what you geniouses think.

Thanks