I think the problem is on my side. i tried to download another modpack to see if that changed anything, and installed it the same way. the cars do spawn in. but like before, only the tailights activate when i try to start the siren. It looks like the lightbar is always glowing or something. Very bright colors, but no refection on walls or anything like that.
earlier today i tried to download this vehicle pack: https://www.lcpdfr.com/files/file/20065-los-santos-police-pack-tpd/ . and i followed the instructions to the best of my ability. it seemed to work at first, the cars do spawn in and behave normaly, that was until i figured out the lights do not work. i placed all the vehicle files under patchingday 15 or 14, cant remember. and the xml files in the ELS folder. is there a quick fix for this or did i do something wrong?