I do not have the HL with the side airbags, but I did upgrade my mirror to an auto dim with compas, temp, and LED maplights underneath.
If you have not ordered your mirror yet, let me know and I can pass along a very good contact where you can get a great Gentex mirror, new, for a good price. In addition, I have purcased 3 mirrors from this guy and he has given me great customer service every time. I highly recommend him.
Anyway, You may want to check on this, but I think if you disconnect the battery before installing it, then the bags should not deploy. I am not certain on that, so please check first. The install is very simple and if you tap into the power wire in your overhead map lights (there is constant power to them) then the only wire you have to run down the corner post is the temp gauge wire.
I hope that helped a little at least.
Good luck and enjoy your new mirror!