is3oo

I just installed a new CD deck in my IS, (Pioneer DEH-P840MP), but when I turn on my lights, the lights for the dash don't come on. Hooked up everything right, although there is an orange/white wire on the deck that is to be hooked up to the "lighting switch terminal". I didn't know what it was, so I didn't connect it to anything Please help!!!!

Help Please!!!!!! :(

I need the part number for the highbeam relay for a 2001 IS300 :o