hi i have some electric problems whith my 05 f 250
1 remote radio controll on stering wheel dont work
2 automatic sound level dont either
3 pdc is not working
4 where can i get the code for keyless entry

when i engage the pdc system and go to reverse gear it give one bip and then goes off is there any ecm for that function ? i have checked wiring for open or ground but that part looks ok any ideas

and last is the air vents operated by vacum i dont get any air on the side nozzles to the side windows i hope you can understand what i am wrighting regards from sweden