If you got the altezza's all you need to do is unplug the old light and plug in the new ones into the wiring harness. There are 4 bolts that hold the light in place. If you are having a brake light stay on then you either have the bulb in backwards(they're polarized), or they wired one up wrong at the factory. That happened to mine. Any questions, dont hesitate to ask, btw did you have fun cleaning all that black tar goo! that shit is hard to get off your car
it wasn't that hard for me to get it off all i did was use that goo gone stuff! that stuff works maricles! But i got everything hooked up it just kept blowing fuses....i think the wires going into the connectors were loose it has done fine today but we'll see in the morning!