first off, optx are junk, dont buy them. the LEDs died out in what i got in like 2 days. i was going off EXACTLY 12 volts. if your gonna do LEDs, i would say do some research, then hit partsexpress.com. i know the OPTX are streetglow, but OPTX stands for optimum performance technologies, which is shit, there optx subs are worse than visonik, and the amp blew as soon as i switched to low pass, WHICH IT SAID IT WAS EXACTLY TUNED FOR. i lose 130 in 2 kits, and all i gotta say is, dont buy anything with a streetglow label unless its an underglow kit.
EDIT: the only nice things that ive ever gotten from the OPTX line were the alan keys for the amp inputs. 14 gauge amp kit....jesus crist.