Non-ELS Cars Won't Work With Q!

So I downloaded Sheriff and LSPD Non-ELS cars into my server. I tried using them, but the only way the lights and sirens worked was E. E is the default button for lights and sirens on GTA V. All the other Non-ELS servers I play on have the lights toggled by Q or Y, the sirens toggled by Alt or Up Arrow. Than you change the siren setting with R. Mine only works with E but I want Q, Y, Alt, Up Arrow and R.

Please Help Me, bye. need help

u gotta download lux veh control if u search it u will find it

Thank you so much!