Federal Signal Unitrol Touchmaster Siren

This is my rather rather beaten up Federal Signal Unitrol Touchmaster Siren Console. I purchased it from eBay for $30. As stated in the video, I believe the polarity is somehow messed up on the "RLS" switch. If the polarity was positive rather than negative, then I would have wired the "Horn Ring" to the "RLS " instead of having the push button, but as it is, the button works fine. All other functions seem to be working. (Have not tested a mic) The speaker is a 100W Federal Signal AS-124. (Neither the siren console or the speaker are for sale)

Opening song: Tear Down the Wall by Art of Dying
I do not own any part of the song stated above, nor will I profit from it in any way, shape, or form. It is being used solely for entertainment purposes.