2003 Ford Crown Victoria with only 49K miles. This was my great aunt’s and this car sat a lot(no garage) She has passed and I need to sell but the radio won’t play. CD and cassette are fine. Radio station appears on display but all I get is static. If I wiggle the wires on the back windshield I get reception sometimes but not often. I have taken wires off and cleaned terminals but that did not improve receiption at all. Can anyone offer any ideas?