I have everything installed correctly per the readme, like I said even with a complete reinstall the issue is still present.
I'm fairly certain the problem is within ELS, because on some cars the normal siren will activate as well s the wig wags, however on other models the siren will not activate and the E key only toggles the stock horn.
It seems like ELS has loaded, since the models are responding like it has, but it is unresponsive in game.
Since then I've unloaded and reloaded LSPDFR in game but to no avail.
I think next I'm going to relocate the VCF's to a new folder and edit the ELS.ini to see if that could be the issue.
Edit: Changing the VCF folder doesn't do anything either.