Hidden antenna in dash

I cut out the old speaker grill on my Dart and fabricated a well that holds my GPS and a roof antenna from a 2007 (I think) Chrysler 300C. The well is covered with a thin piece of grey lexan. The GPS work fine and gets a good signal. But the stereo does not receive any signal for stations. Also my bluetooth for the phone receives calls but I cannot send, i.e voice out. The mic for the phone might be bad, but I'm at a loss as to the antenna signal problem. I was told this antenna would work with the Alpine receiver. Any thoughts, comments or suggestions would be appreciated.View attachment 1715291471

Being down in a hole surrounded by metal would be my first guess.
Radio signals and GPS satellite signals are two way different things.