Earl,

SORRY that I've been so lame. Don't check in with the .info site that often and I have forgotten to check all of my rear door popper info for you.

My rear door popper works as you are describing with the OEM key fob. Using the OEM key fob if I press the unlock button once both driver and passenger doors unlock. If I press it again then the rear door popper triggers. At least that's how I remember it working. Vicki has been sitting in the garage for a LONG time now while I tore the interior out in order to get the roof repainted. Now I have to put everything back together (good thing I took pictures of the disassembly).

I think there is an "Option" button on the remote, but I think that links into the Isuzu garage door opener interface.

I'll have to dig through my information to see if I can find the instructions on how to make the second press of the unlock button trigger the back door popper. I'm not electrically savvy enough to figure it out on my own so someone had to send me instructions on how to do it.