Bonnet Grommet?

Over the weekend I had to run a cable from the cabin to the bonnet. I used the grommet that sits on the o/s at the top of the bonnet area - however I had to poke a hole in it to be able to feed the cable through.



I'm now worried this has made its watertightness redundant. Does anyone know any info about this? Is it meant to be a watertight seal?



The hole I made is tiny and it should not make much of a difference, but if its a watertight seal then I'll have to do something about it. Does anyone have any ideas on how this could be done?



Cheers!

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