Hmm, I think those are just spare connectors Victor. It may be the drawing that is showing a later loom, has these commoning block connectors I'm referring to where yours doesn't, I can only go by the 1996 drawing. Paying a professional Could work out expensive as it will probably take them ages to find it as typically the fault will go as soon as they arrive.
At least that's what happens to me.
Your best bet is moving wires and parts of the loom to try and recreate the problem. There's two times you can do this, one when the radio isn't flashing and the other when it's completely dead. If it's flashing it's difficult to know if you are causing it in your search. It just takes time finding faults like this. Sometimes lots of time.
I wish you luck with it.

Your best bet is moving wires and parts of the loom to try and recreate the problem. There's two times you can do this, one when the radio isn't flashing and the other when it's completely dead. If it's flashing it's difficult to know if you are causing it in your search. It just takes time finding faults like this. Sometimes lots of time.
I wish you luck with it.