No "workarounds", keep telling myself to buy a third key B4 I loose one.....
Price Checking Dealers & Locksmiths is all I can suggest.
Some Folks who hate the system & want to use a lot of cheap keys have "bypassed" it by removing the chip from their key & taping it inside the steering column near the sensor ring around the lock. Kills off the theft prevention system so anyone can "jimmy" the lock & take the car though.... It's a "how Lucky do you feel" fix!