What projectors are you using? The aux’s seem to fit perfectly in the stock mounting holes. I’ve been thinking of retrofitting the Spyder as well, but haven’t gotten into researching projectors that will fit into the headlight housing, or the aux light holes. You might actually find that the Aux projectors will be more than sufficient with visibility, that you may not need to worry about the headlights. Unless of course you want the power of the sun.