I forgot to mention the opener works when the engine is not running. Every time I back out of the garage I have to shut the engine off to close the door.
I installed a new receiver and got 2 new remotes (the old Montgomery Ward remote just wore out and fell apart), both are programmable but it would be just as much of a pain to remove the receiver as it was to install it.
"What about wrapping the Cobra in ali foil."
I dunno. If I could afford a Kirkham, I'd let you know