You can now assign the following new police scanner dialogue to your vehicle audio config with fastman92 limit adjuster, GTAAudioMetadataTool (https://github.com/ook3D/GTAAudioMetadataTool_V2) or RAGEAT.
Additionally, POLICE_SCANNER_VEHICLE_CATEGORY_SUV has been turned into a randomized sound and can play either SUV, SPORT_UTILITY_VEHICLE or 4X4.
POLICE_SCANNER_VEHICLE_CATEGORY_SEDAN has been turned into a randomized sound and can play either SEDAN or FOUR_DOOR. Same with POLICE_SCANNER_VEHICLE_CATEGORY_FOUR_DOOR.
The dialogue was recorded by a real person (Jeansowaty) and then processed through the RVC voice converter to sounds like dispatcher. No TTS was used.
If you're wondering where categories such as chopper or luxury car are, these have been added in DLCs.

Manufacturers:
POLICE_SCANNER_MANUFACTURER_MAN_BF
POLICE_SCANNER_MANUFACTURER_MAN_BOLLOKAN
POLICE_SCANNER_MANUFACTURER_MAN_BUCKINGHAM
POLICE_SCANNER_MANUFACTURER_MAN_CANIS
POLICE_SCANNER_MANUFACTURER_MAN_CHEVAL
POLICE_SCANNER_MANUFACTURER_MAN_COIL
POLICE_SCANNER_MANUFACTURER_MAN_FATHOM
POLICE_SCANNER_MANUFACTURER_MAN_GALLIVANTER
POLICE_SCANNER_MANUFACTURER_MAN_HIJAK
POLICE_SCANNER_MANUFACTURER_MAN_JACK_SHEEPE
POLICE_SCANNER_MANUFACTURER_MAN_LAMPADATI
POLICE_SCANNER_MANUFACTURER_MAN_LIBERTY_CHOP_SHOP
POLICE_SCANNER_MANUFACTURER_MAN_LIBERTY_CITY_CYCLES
POLICE_SCANNER_MANUFACTURER_MAN_MAXWELL
POLICE_SCANNER_MANUFACTURER_MAN_NAGASAKI
POLICE_SCANNER_MANUFACTURER_MAN_NONE
POLICE_SCANNER_MANUFACTURER_MAN_OBEY
POLICE_SCANNER_MANUFACTURER_MAN_OCELOT
POLICE_SCANNER_MANUFACTURER_MAN_OVERFLOD
POLICE_SCANNER_MANUFACTURER_MAN_PENAUD
POLICE_SCANNER_MANUFACTURER_MAN_PRINCIPE
POLICE_SCANNER_MANUFACTURER_MAN_PROGEN
POLICE_SCANNER_MANUFACTURER_MAN_RUNE
POLICE_SCANNER_MANUFACTURER_MAN_STANLEY
POLICE_SCANNER_MANUFACTURER_MAN_TRUFFADE
POLICE_SCANNER_MANUFACTURER_MAN_WEENY

Categories:
POLICE_SCANNER_VEHICLE_CATEGORY_4X4
POLICE_SCANNER_VEHICLE_CATEGORY_ATV
POLICE_SCANNER_VEHICLE_CATEGORY_ALL_TERRAIN_VEHICLE
POLICE_SCANNER_VEHICLE_CATEGORY_ALL_TERRAIN_VEHICLE_OR_ATV
POLICE_SCANNER_VEHICLE_CATEGORY_BICYCLE
POLICE_SCANNER_VEHICLE_CATEGORY_BUGGY
POLICE_SCANNER_VEHICLE_CATEGORY_COMPACT
POLICE_SCANNER_VEHICLE_CATEGORY_DIRT_BIKE
POLICE_SCANNER_VEHICLE_CATEGORY_GRAND_TOURER
POLICE_SCANNER_VEHICLE_CATEGORY_HOTROD
POLICE_SCANNER_VEHICLE_CATEGORY_INDUSTRIAL_VEHICLE
POLICE_SCANNER_VEHICLE_CATEGORY_MONSTER_TRUCK
POLICE_SCANNER_VEHICLE_CATEGORY_MUSCLE_CAR
POLICE_SCANNER_VEHICLE_CATEGORY_OFF_ROAD
POLICE_SCANNER_VEHICLE_CATEGORY_PEOPLE_CARRIER
POLICE_SCANNER_VEHICLE_CATEGORY_PLANE
POLICE_SCANNER_VEHICLE_CATEGORY_POLICE_MOTORCYCLE
POLICE_SCANNER_VEHICLE_CATEGORY_RV
POLICE_SCANNER_VEHICLE_CATEGORY_RECREATIONAL_VEHICLE
POLICE_SCANNER_VEHICLE_CATEGORY_RECREATIONAL_VEHICLE_OR_RV
POLICE_SCANNER_VEHICLE_CATEGORY_RIG
POLICE_SCANNER_VEHICLE_CATEGORY_SEMI_TRUCK
POLICE_SCANNER_VEHICLE_CATEGORY_RIG_OR_SEMI_TRUCK
POLICE_SCANNER_VEHICLE_CATEGORY_SPORT_UTILITY_VEHICLE
POLICE_SCANNER_VEHICLE_CATEGORY_SUPERCAR
POLICE_SCANNER_VEHICLE_CATEGORY_TANK
POLICE_SCANNER_VEHICLE_CATEGORY_TRACTOR
POLICE_SCANNER_VEHICLE_CATEGORY_TUNER
POLICE_SCANNER_VEHICLE_CATEGORY_UTILITY_VEHICLE
POLICE_SCANNER_VEHICLE_CATEGORY_VINTAGE_CAR

Models:
POLICE_SCANNER_MODEL_MOD_190Z
POLICE_SCANNER_MODEL_MOD_9F
POLICE_SCANNER_MODEL_MOD_ACCOLADE
POLICE_SCANNER_MODEL_MOD_ADDER
POLICE_SCANNER_MODEL_MOD_ANGARA
POLICE_SCANNER_MODEL_MOD_ARBITER_GT
POLICE_SCANNER_MODEL_MOD_ARDENT
POLICE_SCANNER_MODEL_MOD_ARROYO
POLICE_SCANNER_MODEL_MOD_ASBO
POLICE_SCANNER_MODEL_MOD_ASEA
POLICE_SCANNER_MODEL_MOD_ASTEROPE
POLICE_SCANNER_MODEL_MOD_AVENGER
POLICE_SCANNER_MODEL_MOD_BAGGER
POLICE_SCANNER_MODEL_MOD_BALLER
POLICE_SCANNER_MODEL_MOD_BARONY
POLICE_SCANNER_MODEL_MOD_BEAST
POLICE_SCANNER_MODEL_MOD_BEEJAY
POLICE_SCANNER_MODEL_MOD_BIFTA
POLICE_SCANNER_MODEL_MOD_BISON
POLICE_SCANNER_MODEL_MOD_BLADE
POLICE_SCANNER_MODEL_MOD_BODHI
POLICE_SCANNER_MODEL_MOD_BOOR
POLICE_SCANNER_MODEL_MOD_BRIGHAM
POLICE_SCANNER_MODEL_MOD_BUDDY
POLICE_SCANNER_MODEL_MOD_CADGE
POLICE_SCANNER_MODEL_MOD_CAIRO
POLICE_SCANNER_MODEL_MOD_CALICO
POLICE_SCANNER_MODEL_MOD_CARBONIZZARE
POLICE_SCANNER_MODEL_MOD_CHEBUREK
POLICE_SCANNER_MODEL_MOD_CHEETAH
POLICE_SCANNER_MODEL_MOD_CHINO
POLICE_SCANNER_MODEL_MOD_CLUB
POLICE_SCANNER_MODEL_MOD_COMPACT_WAGON
POLICE_SCANNER_MODEL_MOD_COSNIA
POLICE_SCANNER_MODEL_MOD_COYOTE
POLICE_SCANNER_MODEL_MOD_DF10GT
POLICE_SCANNER_MODEL_MOD_DOMINATOR
POLICE_SCANNER_MODEL_MOD_DORADO
POLICE_SCANNER_MODEL_MOD_DUBSTA
POLICE_SCANNER_MODEL_MOD_EFFRAYER
POLICE_SCANNER_MODEL_MOD_ELEGANT
POLICE_SCANNER_MODEL_MOD_ELEGY
POLICE_SCANNER_MODEL_MOD_ELENA
POLICE_SCANNER_MODEL_MOD_ENSENADA
POLICE_SCANNER_MODEL_MOD_EUDORA
POLICE_SCANNER_MODEL_MOD_EUROS
POLICE_SCANNER_MODEL_MOD_EXSESS
POLICE_SCANNER_MODEL_MOD_FARIA
POLICE_SCANNER_MODEL_MOD_FELINO
POLICE_SCANNER_MODEL_MOD_FELON
POLICE_SCANNER_MODEL_MOD_FENRIS
POLICE_SCANNER_MODEL_MOD_FLASH
POLICE_SCANNER_MODEL_MOD_FMJ
POLICE_SCANNER_MODEL_MOD_FQ2
POLICE_SCANNER_MODEL_MOD_FR36
POLICE_SCANNER_MODEL_MOD_FUSILADE
POLICE_SCANNER_MODEL_MOD_GAMBLER
POLICE_SCANNER_MODEL_MOD_GAUNTLET
POLICE_SCANNER_MODEL_MOD_GLENDALE
POLICE_SCANNER_MODEL_MOD_GRANGER
POLICE_SCANNER_MODEL_MOD_GRASSMAN
POLICE_SCANNER_MODEL_MOD_GREASER
POLICE_SCANNER_MODEL_MOD_GREENWOOD
POLICE_SCANNER_MODEL_MOD_GRESLEY
POLICE_SCANNER_MODEL_MOD_HARDY
POLICE_SCANNER_MODEL_MOD_HAULKING
POLICE_SCANNER_MODEL_MOD_HESSIAN
POLICE_SCANNER_MODEL_MOD_HOGSTER
POLICE_SCANNER_MODEL_MOD_HOOLIGAN
POLICE_SCANNER_MODEL_MOD_IDAHO
POLICE_SCANNER_MODEL_MOD_IMPALER
POLICE_SCANNER_MODEL_MOD_INJECTION
POLICE_SCANNER_MODEL_MOD_ISSI
POLICE_SCANNER_MODEL_MOD_JACKAL
POLICE_SCANNER_MODEL_MOD_JEFFERSON
POLICE_SCANNER_MODEL_MOD_JESTER
POLICE_SCANNER_MODEL_MOD_KANJO
POLICE_SCANNER_MODEL_MOD_KURUMA
POLICE_SCANNER_MODEL_MOD_LIBERTONIAN
POLICE_SCANNER_MODEL_MOD_MASSACRO
POLICE_SCANNER_MODEL_MOD_MESA
POLICE_SCANNER_MODEL_MOD_MIXER
POLICE_SCANNER_MODEL_MOD_MONACO
POLICE_SCANNER_MODEL_MOD_MONSTROCITI
POLICE_SCANNER_MODEL_MOD_NEMESIS
POLICE_SCANNER_MODEL_MOD_NEWARK
POLICE_SCANNER_MODEL_MOD_PALISADE
POLICE_SCANNER_MODEL_MOD_PANORAMA
POLICE_SCANNER_MODEL_MOD_PANTO
POLICE_SCANNER_MODEL_MOD_PENUMBRA
POLICE_SCANNER_MODEL_MOD_PHOENIX
POLICE_SCANNER_MODEL_MOD_PICADOR
POLICE_SCANNER_MODEL_MOD_PINCHO
POLICE_SCANNER_MODEL_MOD_POSTLUDE
POLICE_SCANNER_MODEL_MOD_PRAIRIE
POLICE_SCANNER_MODEL_MOD_RAPIDGT
POLICE_SCANNER_MODEL_MOD_RAPTOR
POLICE_SCANNER_MODEL_MOD_RAZOR
POLICE_SCANNER_MODEL_MOD_REBEL
POLICE_SCANNER_MODEL_MOD_RECURSION
POLICE_SCANNER_MODEL_MOD_REMUS
POLICE_SCANNER_MODEL_MOD_RHINO
POLICE_SCANNER_MODEL_MOD_RIATA
POLICE_SCANNER_MODEL_MOD_RIDGERUNNER
POLICE_SCANNER_MODEL_MOD_ROCOTO
POLICE_SCANNER_MODEL_MOD_RT3000
POLICE_SCANNER_MODEL_MOD_RUFFIAN
POLICE_SCANNER_MODEL_MOD_SADLER
POLICE_SCANNER_MODEL_MOD_SAVESTRA
POLICE_SCANNER_MODEL_MOD_SCHARMANN
POLICE_SCANNER_MODEL_MOD_SCHWARZER
POLICE_SCANNER_MODEL_MOD_SCOUT
POLICE_SCANNER_MODEL_MOD_SEMINOLE
POLICE_SCANNER_MODEL_MOD_SENORA
POLICE_SCANNER_MODEL_MOD_SERAPH
POLICE_SCANNER_MODEL_MOD_SHINIGAMI
POLICE_SCANNER_MODEL_MOD_SKULKER
POLICE_SCANNER_MODEL_MOD_SLAMBIKE
POLICE_SCANNER_MODEL_MOD_SOVEREIGN
POLICE_SCANNER_MODEL_MOD_SPACE
POLICE_SCANNER_MODEL_MOD_STANIER
POLICE_SCANNER_MODEL_MOD_STEEP
POLICE_SCANNER_MODEL_MOD_STILETTO
POLICE_SCANNER_MODEL_MOD_STINGER
POLICE_SCANNER_MODEL_MOD_SURFER
POLICE_SCANNER_MODEL_MOD_TAHOMA
POLICE_SCANNER_MODEL_MOD_TAILGATER
POLICE_SCANNER_MODEL_MOD_THRUST
POLICE_SCANNER_MODEL_MOD_TOMBSTONE
POLICE_SCANNER_MODEL_MOD_TORNADO
POLICE_SCANNER_MODEL_MOD_TRINITY
POLICE_SCANNER_MODEL_MOD_TULIP
POLICE_SCANNER_MODEL_MOD_TYPHOON
POLICE_SCANNER_MODEL_MOD_VACCA
POLICE_SCANNER_MODEL_MOD_VENOM
POLICE_SCANNER_MODEL_MOD_VINDICATOR
POLICE_SCANNER_MODEL_MOD_VOLTIC
POLICE_SCANNER_MODEL_MOD_VULTURE
POLICE_SCANNER_MODEL_MOD_WAFFE
POLICE_SCANNER_MODEL_MOD_WALTON
POLICE_SCANNER_MODEL_MOD_WARLOCK
POLICE_SCANNER_MODEL_MOD_WARRENER
POLICE_SCANNER_MODEL_MOD_WEEVIL
POLICE_SCANNER_MODEL_MOD_WINKY
POLICE_SCANNER_MODEL_MOD_WOLVERINE
POLICE_SCANNER_MODEL_MOD_YOSEMITE
POLICE_SCANNER_MODEL_MOD_ZION
POLICE_SCANNER_MODEL_MOD_ZR350
POLICE_SCANNER_MODEL_MOD_ZR450