I have purchased a set of aftermarket fog lights w/ an install kit. The kit instructs the user to wire a dedicated switch to run the lights. I would prefer not to do this. What I want to do is to have them turn on when I run my parking lights and then get brighter when I run headlights. So, if I take the power source from the running lights to the fog lights, that will work for that portion. If I run another lead from the headlights to the same terminal on the fog lights, will the extra voltage make them brighter. I assume it will. But, will that voltage also run back to the parking lights circuit? And will parking lights voltage then also flow to headlights? I do NOT want either of those events to occur. I don't want to burn anything out, for sure. Thanks for any help.