Keyless entry antenna location

I have a 2001 Isuzu Rodeo, V6. I need to find the location of the keyless entry/car alarm antenna. I have heard that this vehicle might use the body frame as an antenna. Can anyone confirm this? Also where is it attached to the frame if this is the case.

Thanks

I don't know about using the body as an antenna but I do know it doesn't have any other sort of antenna. The module for the keyless entry is behind the glove box to the right.

I also have a keyless entry on my 2001 Rodeo. If I use the door loc it will unlock either the drivers door 1 turn or all doors on 2 turns. Does this indicate that I am missing a keyless remote for the system. Did all 2001 Rodeos come with a key fob for Keyless entry?? :confused:

if you have power locks then your truck came with keyless entry.

if you have power locks then your truck came with keyless entry.
OK next question is can they be made to lock automatic ? Like when the car is put in gear or at a certain speed?? Thanks

Nope. That is a GM american car type of feature.