So after making Franklin's voice mod for GTAIV i thought why stop there
may as well bring Trevor and Michael in as well

if you re-upload it make sure to credit me properly Subway132(GJGamingBro) 
do not forget to add GJGamingBro in the end as this is my YT name and my mostly used name in the internet.

Want to discuss about this mod? Join our discord server https://discord.gg/Sguu6mq

installation
files in speech.rpf folder go to
GTAIV/pc/audio/sfx/speech.rpf/SPEECH/

file in scripted_speech.rpf goes to
GTAIV/pc/audio/sfx/scripted_speech.rpf/SCRIPTED_SPEECH/

if you want to install Trevor's skin to TLAD instead
voices in TLAD Version go to 
DLC/TLAD/content/pc/audio/sfx/EP1_SPEECH.rpf
if you're playing xliveless version of IV Complete Edition
or
TLAD/pc/audio/sfx/EP1_SPEECH.rpf
if you're playing latest version of IV Complete Edition or EFLC 1.1.2.0

Then download Trevor Philips's skin mod for GTAIV
http://www.mediafire.com/file/n4s1kx98mguis2m/Trevor+Philips's+Skin+mod+for+IV.rar/file