Hi all has anyone put the tom tom software on the builtin unit of this car as a fried of mine has a 300c and is not impressed with the satnav it has.

i have 2012 Chrysler 300 and after i follow the famous article "HOW TO: Map Update on Uconnect CTP11 & CTP12 (2011 - 2012)" the garmin navigation enter into loop boot; i tried to downgrade garmin system for ctp12 from 4.14 firmware to 3.15 no luck same error (error on reflashing error code :0x31a0) when try to update new map i tried map year 13 and 14 and 17 and 20 and 22 ....all of them has size bigger than 200MB+ i read article some of them say its USB issue and some of them said its map unlock or locked many idea but one person said its failing because no space ....this is why i want map less than 50 to 70MB if possible to try , personally i think may be dealer lock the map with vin or product id came preinstalled in the car (City Navigator Middle East & Northern Africa NT 2012)

this is why i want same 2012 map to try , any idea welcome ...