I think your best bet would be to buy something like this kit:

https://www.nationaltoolwarehouse.com/44pc-Master-Radio-Removal-Set-P132647.aspx?gclid=EAIaIQobChMIwIj8i7mT1gIVlEoNCh3ErAg5EAQYASABEgJXLPD_BwE

I have one, and by trial and error (most times) I have had no trouble removing multiple brands of head units. Best of luck.

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1992 500SEL 25K
1995 E320 40K
1995 SL600 120K
2002 JX8 Sport 43K
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2006 Isuzu NPR 304K (Frankencamper)
2007 Crown Victoria 150K
2014 Smart Electric 20K