I have a 2001 suburban which has 1 8" sub in the back that is blown. Everything is stock. I bought a cheap $20 replacement and when taking the old one out I see it says 2 ohm where my new one says 4 ohm. The old speaker has a red and a black terminal. The new speaker has 2 red and 2 black terminals. Is there a safe way to wire this so it will work fine? I obviously know nothing about this and just want something that works without damaging my system. Thanks