Does the radio divorce?

[quake4]

The speakers on one side of my 9-5 stopped working. I removed the speakers to check them out of the car and they work well. The balance roulette is in the middle. I will check radio connections.request the code if you disconnect / connect the radio?
you have to remarry the radio with tech2?

[Mike Brennan]

Removing and replacing the same unit does not require a tech II nor will it require a code.

[quake4]

Thanks Mike Brennan! Any suggestions that may be happening when there is no sound in 2 speakers? The radio system is the simplest "popular"