I bought this one from Ebay looks good , screws right on $10 look under the picture for the link also original looking antenna on amazon link below

https://www.ebay.com/itm/JDM-5-Stubby-Carbon-Fiber-Aluminum-Auto-Car-Short-Universal-Silver-Antenna-L38/293760875416?epid=18007861860&hash=item4465833b98: g:iBcAAOSw-M9fdHJB
copy and paste below link or ebay comes up

https://www.amazon.com/AntennaX-16-inch-Chrysler-Crossfire-Roadster/dp/B00E9E5HOM/ref=sr_1_2_sspa?dchild=1&keywords=crossfire+antenn a&qid=1603889924&s=automotive&sr=1-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzS0gzU k1DTU9NWjlNJmVuY3J5cHRlZElkPUExMDI5MzM0MjBFTkpXSDU 3NU45SyZlbmNyeXB0ZWRBZElkPUEwODg3NjY4M01SV05LMEROV Vk0OSZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWR pcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=