Behind your radio, you can use the orange wire that comes from the aftermarket harness (assuming you have an aftermaket HU). It probably isn't used right now, but it will light your guages up when your parking lights are on. Where did you get them from???
If you don't have an aftermarket HU, I can go check which wire to tap into in the factory harness. PM me if you need to, goes straight to my email.
ok, dom284, check it. honestly if you can't figure that out by yourself, you shouldn't be doing this and need a friend/professional to do it, before you blow a circuit. you are asking about the EASIEST, but most dangerous if done wrong step of the installation.
I got these off ebay for 27 bucks but they came with no instructions. i currently have them wired to an inverter which plugs in to my cigarette lighter. I was just gonna splice the red power wire to the green wire on the dimmer and ground then ground it... i just wanted to get input from other people on their thoughts and ideas on what i should do