Do you have a new swicth already?
One that looks like this....
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Ok. These are very easy to change. Please listen, this following video will give you an idea as to what you are trying to do. It is not of a Toyota vehicle but it is changed the same way. Please watch and reply back to me....
You can skip to 1:20 and start watching there.
I am having trouble visualizing what you are trying to do so I will opt out and open this up for other Experts to help.
The part I am replacing looks like this.
the picture is from internet try this link.