AIRC, the wire is grey. The bulb sits in a twist-in socket. You can chase the wire from behind the radio. If the carpet has been replaced, the wire may have been left under it.
You may end up taking the console out. No biggie, only 4 more screws. [A good time to clean/lube the shifter mech, too]. I just did mine, and ran PB blaster into the cable hsg. Made the shifter work much easier. I unhooked it at the trans, and worked the cable til the crud dripped out the lower end. I also blew air thru it. Got quite a bit of nasty out of it. The shifter mech was crudded up w/ old carpet fibers, dirt, rust.