My headunit instructions says I have to connect to the ignition wire( red) and the battery wire( yellow)

I have never heard of having to connect these. are these in the steering column? is this yellow wire providing the power to the unit? I'm a noob but wanted a nicer unit so i have to install it myself. any help locating the vss would be nice and how to bypass the brake would be amazing. thanks

| ITEM | WIRE COLOR |POL| WIRE LOCATION |

| 12V|white & black/red |+ |ignition harness |

| STARTER|red |+ |ignition harness |

| IGNITION|black |+ |ignition harness |

| SECOND IGNITION|black/yellow |+ |ignition harness |

| ACCESSORY|blue/red |+ |ignition harness |

| POWER LOCK|blue/orange |- |DKP, 14 pin plug in pin 6 |

| POWER UNLOCK|blue/yellow *1 |- |DKP, 14 pin plug in pin 13 |

| LOCK MOTOR|blue/orange | |DKP, 14 pin plug in pin 2 |

| UNLOCK MOTOR|blue/red | |DKP, 14 pin plug in pin 7 |

| DISARM DEFEAT|blue/red | |DKP, harness to the rear |

| PARKING LIGHTS +|green or grn/red | |headlight switch |

| HEADLIGHTS|red/black |- |headlight switch |

| DOOR TRIGGER|red *2 |- |harness going under dri seat|

| DOME SUPERVISION|comes on with unlock| | |

| TRUNK/HATCH PIN|tied in with doors | | |

|TRNK/HTCH RELEASE|blue |5wi|PKP, harness to the rear |

| TACHOMETER|black | |data link connector *3 |

| SPEED SENSE|purple/white | |ECM behind glove box |

| BRAKE WIRE|green/white |+ |brake pedal switch |

| HORN TRIGGER|green/red |- |steering column |

| WIPERS|blu/org(L),blu/blk(H|+ |steering column |

| LF WINDOW UP/DN|yellow - green |A |driver window switch |

| RF WINDOW UP/DN|grn/org - blu/wht |A |DKP, 13 pin plug |

| LR WINDOW UP/DN|blu/blk - blu/red |A |DKP, 13 pin plug |

| RR WINDOW UP/DN|red/yel - red/blu |A |DKP, 13 pin plug |

| SUN RF OPN/CLOSE|blk/wht - blk/yel |A |at motor in roof |

| SUN ROOF LIMIT|red, green |- |at motor in roof |

| RADIO 12V|blue/yellow |+ |radio |

| RADIO GROUND|brown |- |radio |

| RADIO SWITCH|gray |+ |radio |

| RADIO ILLUMINATE|green |+ |radio |

| LF SPEAKER|pink - purple | |radio |

| RF SPEAKER|lt. green - blue | |radio |

| LR SPEAKER|black - yellow | |radio |

| RR SPEAKER|red - white | |radio |

 

See if that helps