2004 saturn vue car stereo install: whats this wire?

[Detroitlions33]

Hi im currently in the process of switching put my factory 2004 saturn vue stereo head unit and putting in a touch screen. There is a wire that slides on to the old unit via a metal tab. Does anyone know what this is for?? The new touch screen does not have this metal tab and i had it installed and it was working but didnt leave it hooked up because of this. I have some pictures of said wire.

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[1aespinoza 10+ year member]

That is a grounding strap. You may leave it off or screw it onto the chassis of your radio. I would personally strap it to the radio.

 

[Detroitlions33]

That is a grounding strap. You may leave it off or screw it onto the chassis of your radio. I would personally strap it to the radio.

How would i do that? Thank you appreciate your feedback!

 

[1aespinoza 10+ year member]

Make a hole on that terminal. Remove a screw on the stereo body and screw that terminal through the hole onto the body. Done.