Joshh2424
Junior Member
I just upgraded my 2020 Ram Classic to the 8.4 radio. I got all the parts and got a great wiring harness from Mike (M2Mods). But when I turn the truck on, I can hear the radio boot up but screen is still blank? The bezel lights work as well and when I turn the fan knob on, the fans do kick on. I checked that radio fuse by the brake booster and it wasn’t blown. So I’m not sure where else to check? Maybe let it sit overnight? Idk. Help