Illumination wire

Hey hows it goin? Okay, I have a JVC deck and I want to install it into my 95 Cavalier. On all the wiring diagrams that i have looked at it says to connect the illumination wire from the car to the orange one comming out of the deck, well i dont have that orange wire comming out of my deck. I have already had the deck hooked up and working before in an old toyota corolla and in the cavaler for a bit but i had to take it out for a bit, and i had the illumination wire hooked up to some other wire from the deck (either the 12 volt memory or the power one). I forgot which one to hook it up to now, so do you think any one of you could help me?

Thanks

ANdrew