12V Constant under dash

[Emtd99]

I have a ‘24 Tradesman 2500 6.4 and I installed the remote startx without any issues. Now I want to install the cellphone module, but I need 12V Battery connection under the dash and can’t locate one. I do have the aux switches, but don’t want to puncture the firewall . Any idea of a 12V battery connection under the steering wheel?

 

[jsalbre]

If you have the aux switches then you have pass-through wires and a constant hot on the engine side. Look at the paperwork that came with your truck.