Just had a problem spring up tonight. I don't know exactly when it started, but it was sometime today.
The dome light and cargo light don't work at all, and the bulbs are good. The courtesy light under thew dash works, BUT whenever the courtesy light under the dash is on, the cigarette lighter and radio cut off. But when the courtesy light under the dash goes back off, instantly the radio and cigarette lighter work fine again. At the time I DID have my cell phone charger hooked up to the cig lighter. That may have been what screwed it up, but I'm not sure. I've been riding around all day back and forth in the daylight with the radio off, so who knows when it started.
I guess I'll be checking it out tomorrow, so any ideas what could be causing this to save me a little bit of time? Everything else electrical seems to be working correctly. all lights but the dome and cargo come on, gauges and their lights work, volt gauge is fine.
Also whenever the courtesy light under the dash comes on, cutting off the radio, it makes a deep bass thump in the speakers as the radio cuts out.
I haven't been doing anything funny to the truck, and haven't been working on anything lately, I have been hauling lots of loads of junk through the woods and it's rough back there. maybe something jiggled loose? thats all I can come up with so far.