2013 Touch screen Bluetooth Phonebook while driving

I have a 13 DCLB Sport. I use an iPhone 5s now (had a 4 when I got the truck a couple months ago) and have had iOS7 the whole time. I dont plug the phone into the dash, rather use a 12v adapter and play everything through bluetooth. Contact names and numbers have always come up for me, whether or not they are in my speed dials.
My is that I would like to use Siri while driving to read and send texts, one of the big reasons I wanted a new iPhone with Siri. Whenever I activate Siri in the truck, it looks like it is making a call then immediately ends the call. Is there a way to have Siri not route through the bluetooth? Is anyone else having this issue? Is anyone else using siri with the 13' stereo successfully?

 

I have the iPhone next to the stereo and can press the home button to have Siri speak through the speakers as appose to pressing the button on the steering wheel and not have Siri