2004 Impala Change Engine Oil Light

Hey everybody, I got an 04 Impala, no owner's manual and the damn oil light will not go off. I know someone said it has to go through the radio, but I got an aftremarket in there and I was wondering if anybody had any ideas or tricks. Cause I don't want to keep taking the radio out every 3,000 miles to shut off a damn light, cause that shits annoying. But I guess that's GM for ya, you know how that goes.