1- Unclip your Third Brake Light cover
2-Disconnect the Third brake light (un-plug)
3-Find the Si spoiler third brake light plug (located in middle of trunk)
4-Disconnect Si spoiler third brake light (plug)
5- Find a decent length of wire that looks thicker then the Stock Third brake light wiring
6- Strip the wire on both ends
7- Feed the wires into the stock DX/LX/EX male plug (ground-ground, power-power)
7- Cut or splice the other end of the wires into the si spoiler third brake light.
9- tape or zap-strap the wires along the license plate bulb wiring that leads to the left/driver side trunk arm.
10- your done.
This was a quick way of connecting the bulk wire from the si spoiler to the LX stock third brake light plug. I shoved the wires into the hole and taped it up so the 2 wires dont touch eachother. Use electrical tape to keep the connections away from eachother
Hope this helps.
Total time of wiring install: 20min