Pull the radio or whatever to gain access. Iโm assuming the smell you smelled was an electrical smell or melting wire insulation?
There will be a residual smell and an obvious short/ melted wire or wires.
Itโs strange that seemingly unrelated systems are affected.
Have you looked around the engine bay?
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5โ turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold