How to remove the radio from a T4?

[Gold Coaster]

Thanks for the offer Sunny. I'll see how I go starting fresh again tomorrow but it's certainly reassuring to have a back-up plan.
This afternoon I managed to release the tab on the left hand side of the unit but the right hand side won't budge. In the morning I'm going to finish removing the cradle that holds the air vents situated directly above the radio to hopefully get a view at what might be causing the problem.



(looks like it may be a good time to clean 26 years of dust build up as well)