If its there it is lower down and bolted in.

 

Let me go threw one of mine this weekend and I will get back with you I will try and replicate your issue on mine.

 

Ah. O.K. Not behind the radio but way under the radio. I can't see all the screws holding the whole walnut-like plasic frame in place - got the bottom ones out but it is still stuck right at the top.

Thanks. I am removing the coil, amplifier unit, and ALL the related wiring and am going to renew all the wiring and connections.

 

May or may not help. I had a grand Cherokee with the same problem. My alarm always going off and I didn't have a fob. There were 2 wires going to the drivers side door switch. Grounding one of the wires tricked the alarm sending a constant unlocked signal or something. It never went off again, even if I intentionally tried. Don't know if this is possible on the Disco or not.

 

I'm back from Vacation and work trip any luck yet. Sorry for the delay on getting back to you