Not to avoid the question, because I simply don't know, but do you (or anyone) have directions on how to yank a cell module from a list of cars and still have the car function?
Many cars have something similar (remove SIM card, cut antenna) that allows them to keep working without connectivity
Incidentally, this link recommends termination resistors, which I think are the better answer if there's a suitable connector (which I imagine is the case for most cars). If it's not terminated, I believe it can still pick up a nontrivial signal.