2013 Ram 2500 Electrical Issues
 

I live in Canada and recently my truck has been experiencing electrical issues. We have recently gotten a cold snap and the issues started then. I would start my truck and have it idling and the heated seats and steering wheel wouldnt come on. Also the sound on the radio wouldnt come on, I would increase the volume and nothing. Then as I was warming it up the higher the idle the brighter the head lights would get. Today I was driving and noticed that the foot vent wasnt putting out heat. Only window defrost would come on even when floor heat was selected. Just wondering what could be the issue.
Thanks