RE: red blinking light on dash
If its a Convetrible, ie 2000- and older the red light which you might be reffering to is located on the upper right hand corner of the dashboard. This is the Anti-theft indicator, if it flashes while the car is running two things can happen:
A) The car will shut off in about 2 seconds as it thinks the key does not match its internal code
B) You have an electrical issue with the anti theft system, have the dealer look at it.
p.s: Did you get a new key made by any chance, that could be the issue as sometimes those keys could be defective.
1999 Chrysler sebring Converible
2.5L V6 / Autostick