New to the site. Enjoyed browsing over the last two weeks looking for a solution to the terrible am reception on the GT radios. I also got the "That's how they are" speech from the dealer! Has anyone tried the JC Whitney signal booster? Supposed to plug into back of radio and increase signal strength by 3x. Only $10.00 plus shipping, but looking for a success story first, 'cause I don't really want to rip open my dash if I don't have to. Thanks for any assistance.