PascalDal

Hello, I had a problem I tried to find a solution for three days : I have an old iPhone 3GS (iOS 6.1.6) and I want to use it un my car to listen musics so as a iPod but also to use à dedicated car’s application Called Mini Connected (my car is a Mini Cooper). Unfortunatly the current iTunes version is arm64 and not compatible with ios6 and the oldest version still available on iTunes is 3 years old and not supported by iOS 6.1.6 either. finally I found a compatible version (from 2014) somewhere but it is a ipa file containing a different apple id that mine (of course I dont have the password). I tried to install it through iTools on my phone, this work but each Time I launch it iOS ask for login / pass and if I input mine or choose cancel this close app. I tried to install rasticrac but it doesnt list my app since it is not installed with iTunes or attached to my iTunes account... I don’t try to stole something since this is a Free app, I just want to be able to install an app version compatible with my iPhone : I tried also to delete completly the iTuneMetadata.plist file or to edit AppleId/PersonID/... etc with no lire success.. is there any solution to get this ipa file working on my phone since it is linked with different Apple id and store (us store, but I use French one) ? thanks for your help.