darthKarl is correct. There's no way without adding more equipment to make your phone work with the phone in the truck. You can call verizon through the onstar button and add a line of service for $10/month and it uses the same minutes as your verizon phone. But, of course, you need to have verizon service to begin with on your cell phone. You should try the voice activated dialing in the H3. It doesn't work to well and I find it to be pretty funny when it can't figure out what your saying.
