Ground wires for HU :(

[pyunny 10+ year member]

I'm new to this stereo stuff but plan to install

a HU i got by myself because it costs too much

to get it done professionally. //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

I got a JVC KD-G420 HU that has a ground wire but the

wire harness that I have for my Nissan

has 2 ground wires, one with the rear speakers

that is specified as just ground and another that

is with the other wires and says is for Chassis

Ground (12V-). The back of my headunit also has a

metal tab on the back that says "rear ground terminal".

What i was thinking I would do is attach the Chassis Ground

to the ground cable from my HU and then attach the

other ground cable to the metal tab? Sorry I really don't have

much of an idea of what I'm doing but hopefully if anyone can help

that'd be great.

this is the back of my HU btw:

Click to read more...

 

[ultimate157 5,000+ posts]

What does the wire harness installation guide tell you ?

 

[pyunny 10+ year member]

the guide just says "match and connect the appropriate wires from the car stereo connector to the appropriate wires of the plug provided with your stereo. For example, connect the 12 volt accessory lead of your stereo to the red wire on the Car Stereo Connector."

and it also says

"tape all unused wires to prevent short curcuiting"

 

[Worlddre 5,000+ posts]

there is no ground in nissan harnesses you are going to have to physically ground the wire yourself

 

[pyunny 10+ year member]

if it's true that nissan harnesses have no ground i wonder

why my wiring harness put ground wires -_-;;.

so should i tape up the ground wires on the wire harness

and then just ground the wire from the headunit manually?

I think i'm supposed to connect the grounds wires to something

metal right? -_-a?

 

[pyunny 10+ year member]

would it be a bad idea to put all 3 wires together?

 

[azeroth123 10+ year member]

all grounds need to be grounded to not just something metal but the bare metal of the chassis of the vehicle, doesn't really matter how you go about this, a grounds a ground as long as its good.