Thanks for the help again. So question i figured mine was defective. So i returned the one i recieved originally. Rebought it recieve it. Same error volume going up on its own to max volume. I plugged it into the first 8 pin port by the power input. So i saw there was another 8pin port on the unit. So i plugged the canbus 8 pin in the back of the headunit there. Now i cant use my volume up and down with swc or the knob on the steering wheel but it doesnt auto go up volume to max. Any ideas. Is this the right port. Also how do u know if the canbus is reading as i connected my car stereo to my mobile hotspot and no update came for the canbus but ac controls work on the ac control unit below the stereo. Edit: The canbus doesnt seem to see the unit on that other port but moving it back it then it registers swc and inputs for climate conttols but the volume goes up to max again and I can't update the canbus I'm connected to a hotspot and try to detect update and nothing happens. again 2013 Dodge journey SXT. It had an rb5 nav from Dodge auto climate controls