You will need to have it towed and Diagnosed, may have damaged both the PCM and Alternator.
If you would like, we would provide a Free Scan and a Free 23 Point Inspection.
http://davesautoserviceinc.com/contact_us/
TEST *ALL* FUSES!!! .. Every fuse you can find! .. Assume nothing.. IF that don't work out then it is beyond DIY capabilities.. See answer # 1 ... Good luck!
just don't see how that could happen? battery cables color coded,plus and minus symbol on the battery. more than likely you won't do that but ONCE in your lifetime,and you will NEVER forget about it.
RepairPal Certified shops can diagnose and repair your 2003 Chrysler 300M. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Thanks a lot