I know it's not OEM but my '09 was the same way as yours, Here's what I got:
http://store.griffintechnology.com/bluetrip-aux
It plugs into your cig lighter under the armrest, then into your aux port, pair it up and it 10 seconds you're streaming bluetooth with no visible wires. I found a 20% off coupon code to get it for like 60 dollars. The sound quality is great and it works like a champ.