constant 12V?

[1-3-2-4]

Anyone know where I can tap in for a constant 12V source for a keyless entry?

[Huffer]

Your battery has a constant 12v...

[Hocrest]

There is also constant 12v going to the stereo.

[Wiscon_Mark]

I would tap the battery directly, and run a line through your firewall. There's a couple of plugs with unused holes usually, otherwise it isn't hard to drill a hole. Not that there's a great amount of current going to the stereo to keep the clock/settings correct, but I wouldn't use existing stuff like that for something like keyless, especially if that system is powering your actuators.