That’s a neat idea, thank youhttps://www.amazon.com/Touchscreen-podofo-Compatible-Hands-Free-Navigation/dp/B0BWMWN9VZ/ref=sr_1_1_sspa?crid=1SWF2LUHPFZR5&keywords=podofo+10.26&qid=1692811414&sprefix=podofo+10,aps,171&sr=8-1-spons&ufe=app_do:amzn1.fos.f5122f16-c3e8-4386-bf32-63e904010ad0&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1
Give this one a look. What I would try is to hook up the iPhone to the stereo with your cable and then send the car play on this device by Wireless CarPlay. There are also cable outputs on the CarPlay device.