Dude, my old roommate used to have pee exactly like that.  It was this weird gold/orange-ish color and smelled weird.  He didn't always flush the toilet, hence the fact I know this.  All he drank was pop; mostly Dr. Pepper, sometimes Mountain Dew.  Not once did I see him drink anything but pop in the year I was there. Also, his shits smelled awful, per his steady diet of trash.