They selle Radio Rmoval Tools.

I had no Radio Removal Tools and got mine out but it was so long ago I don't remember how I did it.

I am sure you know what you mean by the First Row but I cannot tell from that description.
Why not use the numbered position of the Fuse/s to identify them.

Again I cannot remember the Details but I had one of the Wires that is supposed to be soldered to one of the Main Bars in the Fues Box come lose and had a bunch of stuff not work. The Wire was visable by looking down past the Fuse Brackets.

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84 300D, 82 Volvo 244Gl Diesel