sidemarkers

i recently took a trip to my local street races and i noticed a white ep lowered on white rims, dark tinted windows and his side markers stayed on. i told myself, i said "self you should make your side markers stay on" and that is why i am posting to see if any of you guys can tell me how to make my side markers stay on(or come on when i turn on my lights);)

thanks in advance
and i did search but found nothing

In my 99 DX all I did was use double filament bulbs and voila lights on all the time and it blinked when the blinkers are on....

are you sure thid willl wwork for the new si