Anyone done an install on a car like this? I've got the Grand Prix GTP, it's got a standard GM oversize CD player in the dash. I'd replace it with the RioCar, but... the CD player interfaces with the steering wheel controls and the Heads-Up-Display. So - I'm currently looking at doing an install where I remove the ashtray, put the RioCar in that area, and hook it up with an FM modulator. Any tips or gotchas?

Thanks,
Bill