Help to identifie an insignia

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Hi
I am french and looking for help to identifie Abzeichen over pictures.
Hope i will find some help here.
Thx

The first one:
Over the pic are LW soldiers but the plate of the véhicule is invisible...

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IMG_1483.JPG (90.35 KiB) Viewed 3715 times

I ve got another one to identifie. Who can help?
It must be a LW signal unit.

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It seems i have no success....
And this one.
It's a LW unit too but which one?

LKW LW bouc.jpg (55.98 KiB) Viewed 3618 times