The fog lights on my last 2 vehicles(A Sienna and an Outback) could only be turned on when the headlights were on. I found that terribly useless in really foggy situations. I didn't order the fog lights on my Premium because I didn't want a repeat of those experiences. I've read that people are installing the fog lights afterwards and having a separate switch on the dash for them. For those who added the fog light kit afterwards, can you tell me if they can be turned on without the headlights on? And do you think it was worth getting them afterwards? Thanks for any suggestions about them.