I am using the Carkit.com adapter for the 8800 and it works great in tandem with a RAM mount. I use the speakerphone off the phone for speaker instead of a holder speaker but you can get that integrated as well I think. It powers the phone while in the adpater.
Parts Store: Hands Free Car Kit Phone Cradle Products — Car-kit.com
and also check..
RAM Mounts cell phone mount
A little more expensive but well worth the money and allows flexibility in moving into other vehicles on the fly.