I have a 1989 300E. I installed a aftermarket JVC KD-SH99 receiver about two years ago. Since I installed the receiver the antenna has not worked, it has not bothered me till lately. I always listen to CDs in the the receiver, the 12 disc changer or my mp3 player connected to the receiver. I now have a need to listen to the radio. With the original receiver when the car ingnition started the antenna raised now it does not. How can this problem be corrected. Thanks for all help in advance.

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1983 240D Yellow
1989 300E Champigne
1993 190E Gray
1986 325 BMW Burgundy
1987 Chevy S10 Blazer