06 RT Ridge. I’m ready to junk the whole truck lol. Changed out the stock radio to Pioneer AVH-P4400BH. From the get go the AM/FM reception has been the shits. I re checked the wires to the amplified antenna and everything is good. I started thinking the antenna booster was crap. Went to auto store picked up a aftermarket fender antenna, plugged it in and grounded it with a wire to battery. Held antenna up in the air as high as I could and still no AM at all and spotty at best FM. I’m now thinking I got a shitty Pioneer HU receiver. I’m at the end of my rope. Thinking of getting a new Sony HU.