Head unit power and wiring question

[tdog333]

Hey guys, I just got done installing a new 4chan amp and door speakers. I re-wired everything, ran new wires for front and rear speakers and unplugged factory amp. When i tried to turn Head unit on nothing happened. I checked the voltage on the red wire coming out of the stock harness, and there is no voltage.

Checked all my fuses and relays and they are fine 0.o. So i ended up running a wire from my fuse box (cabin lights fuse i think) up into my head unit area, i tried hooking it to the red wire(off head unit), and yellow wires(off head unit) individually but nothing happened. When i hooked all 3 together (red and yellow off of head unit, and wire i rigged off the fuse, the head unit turned on and worked perfectly. But when i turn the car off the head unit stays on.

Any suggestions on what to do? If I can just rig it using wires from the fuse box thats good enough for me. Just not sure what to do at this point.

Click to read more...

 

[tdog333]

Btw: vehicle is 1999 toyota landcruiser, head unit is a pioneer DEH-4300UB, but is getting replaced tomorrow with a Power Acoustik Power Acoustik PD-710B if i can figure this wiring problem out

 

[Side Show 10+ year member]

yellow wire on back of the headunit is constant pwr (always has pwr) the red on the back of the deck needs to be connected to the accessories so it can only be turned on when the key is turned.

so i'd suggest you find your accessory pwr behind the dash or ask some1 to do it for you.

 

[phemps 10+ year member]

1999 Toyota Landcruiser Stereo Wiring Information

It looks like your factory accessory switched wire is actually grey, so you were using the wrong wire

 

[Side Show 10+ year member]

^^ sorted, also i'd suggest using crimp connectors if your changing decks regularly

 

[robert420 10+ year member]

you said you connected the power wire to the cabin lights? it might only turn on if the cabin lights are on...

 

[tdog333]

1999 Toyota Landcruiser Stereo Wiring Information
It looks like your factory accessory switched wire is actually grey, so you were using the wrong wire

Ahhh okay that makes more sense, never would have guessed.

Okay so just take the blue/yellow(constant according to that link) and connect to the yellow on head unit, and then connect the grey(switched) to the red(accessory?)

 

[CrossoverOre 10+ year member]

Ahhh okay that makes more sense, never would have guessed.
Okay so just take the blue/yellow(constant according to that link) and connect to the yellow on head unit, and then connect the grey(switched) to the red(accessory?)

yes