Installation : Replace in mods/x64c.rpf\levels\gta5\props\lev_des\lev_des.rpf 
prop_phone_ing.ydr/prop_ig_phone1.ytd (Michael's Phone)
prop_phone_ing_02.ydr/prop_phone_ing_02.ytd (Trevor's Phone)
prop_phone_ing_03.ydr/prop_ig_phone1.ytd (Franklin's Phone) 