Does anybody have this in car phone?

[BlizzardX23]

Cant help you...my Blackberry syncs up with my Pioneer Avic Navigation unit when I start the truck

 

[puckhead]

Is it pretty helpful to have something like this? Or one that syncs to your deck? ive just been using speaker phone if im alone in the car

 

[killer20072001]

Its awesome when i have a call it tells me. I love it deffinanlty leaving the stock head unit in because of it.