Reverse Light Wiring

So I'm having an issue with me '00 RL reverse lights and intend to install aftermarket smd LED lights to act as reverse lights instead of stock oem bulbs. The strip I bought has a (+) and (-) wire that is to be connected to the reverse light wiring. My vehicle did not come with a manual and wiring is not my forte. Any chance someone could point me in the right direction as to what power source/wires to tap to make this work out?


thanks!