Mid display repair

[bastereo]

First time post. I am the new owner of a 344k mile e53, just put a new engine in it.

So, I have the usual dead pixels on my MID or radio display, what ever you want to call it.

I am planning to fix this myself, have been searching the forums.
Found a walk though here
And a few repair cable or ribbon cables like this one: eBay

My question is that most of the replacement cables say to use a micro or t soldering iron.
But looking at the walkthough and posts, I cannot figure out where or why I would need it.
The cable looks like it is tape onto the one end and a friction fit with the foam piece on the lcd end...

Oh, I have a 2001 x5 3.0

Any other walkthoughs or tips?