2014 Cascadia Evo. Radio goes off and on..

It's sounding like a loose wire to the ignition switch. You could always just bypass this issue by connecting the wire that goes to the ignition switch directly to the constant power then your radio will always stay on until you turn it off. I just did that with my radio this weekend and love having the #### thing stay on all night while I'm parked and the engine is off.

 

Grounds, grounds, grounds. Don't waste time on anything else until you have done every ground on the truck. That does not mean look at them, or wiggle them, it means undo them, sand paper, wire brush, grinder, reassemble, and recoat with the reddish paint Freightliner uses.

Unless you do that, you could be chasing Gremlins forever. These trucks are famous for bad grounds from the factory.

 

I replaced the PNDB last week got 5 miles down the road and it still does it.Is there any other solution?

 

Ok so 2015 freightliner installed aftermarket radio correctly triple checked connections checked fuses one says amplifier one says radio behind glove box when i turn the radio up past 20 or try to play a cd it shuts off wtf

 

Fuse postion 8 and 9

 

If your radio has power, but you cannot hear anything. Try THE MUTE BUTTON in the SLEEPER!?@

That was my problem I just solved it but has nothing to do with POWER lol....

 

It's got to be a gremlin. I just got in a 2018 Cascadia last week and it does it randomly. Driving, idling, Acc., et al. I'm thinking they went cheap and used wiring that won't handle the voltage. Maybe getting hot and shutting down the radio? Is there a lower voltage wire than for the radio? If this is the case, did they go cheap somewhere more important? I'm definitely keeping notes on this trucks little idiosyncrasies. (Wierd stuff) to the laypersons.

 

I just got in a 2018 Cascadia and it has the same issue. Rolling, idling, Acc., Comfort mode, et al,. Did they go cheap and use wire with too low of a voltage rating? Wire gets hot and radio goes down? Is there wire rated less than the radio? If so, did they go cheap somewhere more important? I'm keeping notes on all it's little idiosyncrasies. That's (wierd ****) to the laypersons.