my kit was plug-n-play basically, it was almost impossible to screw up since the connections only fit into the ones that they needed to go in. you're more or less just replacing the bulbs, but one existing wire will go into a little box, and the wire coming from the box will go to where the existing wire went.

if that makes any sense at all lol. took me an hour or so. just about everyone here has an HID kit, so you're in good hands haha