A/M radio

Any suggestions for getting some updated tunes, I've gotta '69 dart with the original thumbwheel a/m radio still there and working with its single dash speaker. I'm not gonna cut the dash and I don't wanna break the bank for one of the replacements with USB inputs etc. any ideas? Was thinking of maybe an FM converter or maybe trying to mount something in the glovebox. Don't wanna hang anything off the bottom of the dash either. Any thoughts or ideas would be much appreciated. Thanks.