hello my fire company has a motorolla mcs 2000 mounted in our car for medical assists and such..... were trying to figure out if its possible to have the radio turn on with an ignition source instead of always pressing the on and off button ?? were having prolems of people just leaving the radio on , then killing the battery.
I'll only add to what has already been said...
There will need to be an ignition controlled power circuit run to the radio, and it will need to be connected to the correct pin on the bottom of the radio. The radio, then, will need to be programmed to know what to do with this.
It will require someone with the proper cable and software to make these changes. You should contact whoever does your radio install/programming for this sort of work. Unless you have the right equipment and have done it before, it's not something you'd want to do.
There are a few options, including the radio turning on when the ignition turns on, and then shutting off a certain length of time after the ignition goes off. I had mine programmed to work that way. It would turn on when I started the truck, then turn off 4 hours after I last used the truck. That would allow the radio to stay on without the engine running, but turn off after a few hours to preserve the battery.