I need to put a 2way in my buddys truck, it's an 09 2500 and I cannot find a switched fuse on the internal panel to save my rear. I have an 06 1500 and I put my 2way in when it was 2 weeks old, and don't remember having any issue finding a fuse. Are there any fuses that are switched on the internal panel? If not, how is that possible...or are all of those out under the hood. The wiring in some of these vehicles seems so over complicated...and I have done work on Ambulances and Firetrucks years ago....and THAT is complicated. Thanks.