How do I replace the Module-Intelligent Power - Radio is Black

[mustangraider]

I have 2013 Dodge Journey Crew 3.6L 4x2 

 

I have a problem with the radio going black when you start the vehicle and when it goes out it take out all the controls, A/C, fan, front power windows and both defrosters.   If I put the key in the accessory position the radio and everything else works fine.   I updated the radio and tried the 30 minute battery disconnect but the problem continued.

 

I took the vehicle to a Dodge Dealer and was told BOTH TIPMs (totally intergrated power modules) are bad.  The one in the Engine area and the one under the dash. Est. to replace $1700.  Oh, my radio is bad too.....price quoted for a new one $2800.  

 

I can buy both modules online totaling some $300 and the one in the engine area is easy to replace.  Anyone know how to replace the internal one under the glove box?

 

Thanks