to answer your question, thisshould be pretty easy. go here:
http://protege5.ugly.net/09-14.PDF check out page 11. Input A on the module is at B+ (12V) when ignition is on, and below 1.0 (Ground) when in ACC of off position. So, you simply need to tie this input to ground and you will always be able to use the remote. How to:
1) Locate wire A on the keyless entry module
2) Cut this wire 4" from the module to create a 4" pigtail coming out of the module.
3) Tie the ignition side of the cut wire up, so that it will not short things.
4) Tie the pigtail side to ground.
5) Enjoy your new feature!