I am wondering that if I could connect the receiver that is already built in my car, to connect my iphone 3GS GPS, as I am tired with the unreliability of the iphone 3GS GPS reception in the car. I have changed the head unit (the SatNav was pretty basic anyway) to a Pioneer that allows me to control and play music through the car stereo from my iPhone and also lets me make calls via Bluetooth. Is it possible to get a Y splitter that would also allow me to connect the GPS receiver to give me more reliable Satellite Navigation? Hoping that somebody out there can help me.
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