I see some problems: first, the GTM 26 and 26 cables are not compatible with non-original parallel signatures generated by the JetMouse in the 2012 series gps (24x5, 25x5, 3400, 3500). So all signatures installed with jetmouse do not work on these gps, including yours, see the posts on page 3 and after on this topic. However, other original factory-installed signatures work normally. On the other hand, the Jetmouse signature on the same cable, should work with earlier models of gps and some later.


The error that your screen displays seems to have no direct relation to the subscription, but with some update of the firmware of the cable / tuner, I have seen this happen. The updates are automatic and it is very likely that you have not noticed .. But we will see possible solutions later.
Another problem is in relation to the parameters of the signature that you showed: where you got it, are you sure that it is tested and it works? Did you install any other before it? The one that you have has VID = 0 which indicates a signature to delete another one already installed, that is, to delete the signature 18183, 1, 0, 1
You have missed the GTM Info screen, where the FM stations and the tuning codes appear ..