I would much prefer a solder splice due to the current involved.
Another option would be to follow the original ground wire away from the
fan to a spot far enough away to cut it off and then attach it to the
body metal.

Mark

Thomas Casal wrote:
> Do you think a solder splice would be better than those t connector splices?
>
> On Sun, Aug 29, 2021 at 5:00 PM Thomas Casal <thomas.casal@gmail.com> wrote:
>
>> I was thinking that could be my other option. Thanks Mark
>>
>> On Sun, Aug 29, 2021 at 4:52 PM vw_van_fan_Mark <madvws@cox.net> wrote:
>>
>>> That fan has a brown ground wire and you could splice into that wire
>>> with another #12 or #10 wire and screw the other end to bare metal on
>>> the van body.
>>>
>>> Mark
>>