Radio/tape Cd Player problems of the 2005 Dodge Ram 1500

My 2005 Dodge ram srt-10 viper truck engine stalls/shuts down without warning, no codes, no errorlights while driving. . . I have a problem with my truck stalling out when parking or going through slow turns. In the middle of an intersection¿while an emergency vehicle was approaching, it died and I slowly drifted over to an adjacent curve. . The most recent was on 11/06/15, but it has happened at least 5 times over the past 5 months. All lights and the radio remain on and it starts right back up, however my steering and brakes lock up which is a huge safety concern. When the steering wheel is turned my rpms drop dramatically and it sounds like the truck wants to stall. Started surging and stalling so in it went in again, this time they replaced the iac module . . . And then they thought it might be the fuel pump¿so they tested the fuel rail and claim that it was losing 5% of its torque¿but not to be concerned¿then they thought it might be the map sensor¿but no !. . . Again with no indication, no error lights; and no codes¿ ¿ and the dealership mechanics still can not get it to run without shutting off once you step on the accelerator it dies¿ to dealer for checkup. Could not and can not find the problem. And they charged me $967. 00 why can¿t fiat-Chrysler save face when they know a part problem exists and just fix it right without ripping off customers ? the mopar mechanics have had my truck since November 6th, 2015 , (over two months ) and still can not figure out what is wrong with it¿. . ¿they want me to pay more money while they explore different options they claim that the fiat-Chrysler coprporation engineers want them to try¿ ¿really. . Ss you are asking the consumer/customer to fund the education of your mechanics¿fiat-Chrysler really ????? please recall these trucks before some-one or some-family gets killed please. . Please !!.