My first time post so please bare with me!!! 04 envoy fine sometimes , other times radio clock will start running through the numbers like you are trying to set the clock, you can hear a chirp like you are switching from driver one to driver two with button on the door panel but I don't hit anything. Stalled at stop light twice today for no reason. Cranked up once today and it said that battery was not charging.shut motor off and cranked up again message was gone.When the clock is running as mentioned earlier the steering wheel controls do not work.Thanks for any advice