Base on my experience, there is no solution for it.
Have to change to new unit... or can use Garmin/other product (if require GPS)
But u can still use the radio (suggest to install booster if not mistaken)
I have accident with driving my new subaru xv, need to re-painting, change bumper, change the rear lower arm. please advice me , is that send back to subaru hq or outside workshop , which one is better? Please advice...