![I'm wiring a radio harness for the first time and I'm not sure I'm doing it right. are these four extra wires supposed to be there? : r/CarAV I'm wiring a radio harness for the first time and I'm not sure I'm doing it right. are these four extra wires supposed to be there? : r/CarAV](https://preview.redd.it/im-wiring-a-radio-harness-for-the-first-time-and-im-not-v0-1zejwjxorw591.jpg?width=640&crop=smart&auto=webp&s=e2a1d311e59abcf7a8beeed7274f563c00f99703)
I'm wiring a radio harness for the first time and I'm not sure I'm doing it right. are these four extra wires supposed to be there? : r/CarAV
![where do i tap the ground to? factory harness (female) doesn't have a ground that I can connect to. this is for a head unit. : r/MechanicAdvice where do i tap the ground to? factory harness (female) doesn't have a ground that I can connect to. this is for a head unit. : r/MechanicAdvice](https://preview.redd.it/where-do-i-tap-the-ground-to-factory-harness-female-doesnt-v0-2zflmlkyk5x91.jpg?auto=webp&s=96586fc30e48bdce13628fab8e83d23f2b334f51)
where do i tap the ground to? factory harness (female) doesn't have a ground that I can connect to. this is for a head unit. : r/MechanicAdvice
![wiring - Suzuki Sidekick Radio Ground Wire Location - Motor Vehicle Maintenance & Repair Stack Exchange wiring - Suzuki Sidekick Radio Ground Wire Location - Motor Vehicle Maintenance & Repair Stack Exchange](https://i.stack.imgur.com/NPtSg.jpg)
wiring - Suzuki Sidekick Radio Ground Wire Location - Motor Vehicle Maintenance & Repair Stack Exchange
![grounding - Should I ground my radio to the chassis or battery for a mobile install? - Amateur Radio Stack Exchange grounding - Should I ground my radio to the chassis or battery for a mobile install? - Amateur Radio Stack Exchange](https://i.stack.imgur.com/SMBaB.jpg)