Hi All,
Will I loose ecu programs like drl, window, etc when I disconnect the battery.
If so, will inserting that thingy with a 9-volt batt. in the cig lighter help keep the program? You know, that thingy that keeps the radio stations in memory.
Anybody know?

 

No, it is all programmed, cannot be erased with a battery disconnect.

The radio settings are saved ine the radio and will be unaffected by the battery disconnect. The clock, however will need reset. You will also lose your trip odometer readings.