> Does anyone know if a radio from an Optima has the same plug as a Sephia?
> Or know where I can find such info?
I believe most of the Kias have the same connecter
Car Stereo Connectors
Plug Directly Into Vehicle Harness
Provides easy connection of an aftermarket car stereo to factory wiring
harness and avoids cutting the factory harness so all connections are
exactly right. Includes power and speaker wires, and each is labeled with
its specific function. The wiring color codes are EIA standard.
http://www.scosche.com/scosche/connectors/KA01.asp
Car Stereo Connectors
Plugs Directly Into Back of Factory Stereo
Provides easy connection directly to the back of selected factory OEM car
stereos. Includes power and speaker wires. Each wire is labeled with its
specific function. R-series harnesses are useful for replacing factory
stereo wiring due to theft or damage, as well as using the Factory OEM radio
in another vehicle. The wiring and color codes are EIA standard.
http://www.scosche.com/scosche/connectors/KA01R.asp
search ebay you could find them for about 5buck plus shipping
Abe