8) The answer is maybe. I had a set of undersover strobe on a police vehicle. I tied the flash pattern input of the strobe power supply to the siren selector switch. (i would not recomend this). Somehow i didn't blow the diodes and it worked. I left it that way and it was sweet. When the siren, an older SVP, was switched to wail the strobes came on quad left and right, yelp was fast double flash left and right, and phaser was very fast single flash.
On the newer led lightbars, you could do this as well, maybe with the aid of some 9 volt optoisolators and some relays. This would be safer than hooking straight up to the selector switch. The voltage through the selector sw would activate the optoisolators and then the relays. This would change the pattern of the led bar or strobe bar. Of coarse, the Hi-Low and Alternateing signal would depend on the signals the lightbar had to ofer.
Kind of cool to be able to change the sound and light configuration to gain more attention.
ROBERT, Do not remind me of your wail theory!!!
Q2B or not 2B that is the question.