03 jgc tailights

i need help... i bought some jdm altezza tailights. for my jgc but i can't figure out how to instail the led's on the side. the regular light harness is just a simple plug and play on my new lights. but on the side of each light is 2 small led bulbs with a black and a white wire hanging from each. do i just splice into the wiring harness for the regular taillights????
thanks.
bignasty50