How do I byp the alarm on a 2000 montero sport from the penger door?

I changed the alternator and of course disconnected the battery. I dont have a keyless entry remote so I cant start the vehichle!!!!!!! This happened once before and I was able to get ahold of the guy I got it from and he gave me a sequence from the penger door using the key to lock and unlock the door a certain number of times and it worked to byp the alarm, my problem is that I dont remember the sequence and if the vehicle needs to be locked or unlocked when I start the said sequence!!! Please help!!!!!