cant get power to my head unit...

[puregunpoore06 10+ year member]

man i just got the sony CDXGT500 .... and i wired all of the wires together and im not gettin any power...the fuses are good... yellow and red is hooked up... black is wired to black...maybe my problem is i dont know how to turn it on...it dosent say power anywhere...even in the manual...any help would be greatly appreciated...

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[puregunpoore06 10+ year member]

by the way this isnt the same guy with the chevy... im his friend...i guess were both dumb... but were learnin thanks to yall

 

[Mr. Nipples 10+ year member]

Is it hardwired? and what kinda car is it in?

 

[puregunpoore06 10+ year member]

its a jeep 98 grand cherokee with the infinity sound system...hardwired? whats that

 

[Mr. Nipples 10+ year member]

Does it have a factory harness or has it been cut off and theres just wires

 

[puregunpoore06 10+ year member]

just wires...

 

[Vestax 10+ year member]

Source button usually turns it on.

Do this for elimination (assuming you don't have a DMM).

Wire the HU's red and yellow together. Then wire them to the car's suspected ignition wire. If it doesn't work, wire both to the suspected constant wire. From there you can tell which one works or not.

 

[puregunpoore06 10+ year member]

yea im not gettin any power at all from these wires...it must be a fuse... but i checked the fuse box on the pasengers side...and all the fuses were good... are there any more fuse boxes???

 

[puregunpoore06 10+ year member]

**** im gettin mad...im about 2 chunk my cd player and drive my jeep into a ditch

 

[Vestax 10+ year member]

Use this for reference:

http://www.installdr.com/InstallDocs/Jeep/PDF/533013.pdf

Remember, the braided metal is your ground, make sure your hu's black wire is hooked up to this.

There is also a fuse on the HU too, make sure that's not blown.

 

[Bigrick31 10+ year member]

dont wire black to black. take the black that comes off the head unit and gound it to a spot on the car. there should be some sort of metal behind where the HU goes that will run to the floor of the vehicle. otherwise take the cd player out connect red and yellow together and splice on a single wire to those 2. go to your battery have your friend hold the black wire to the negative post on the battery while doing that touch the red and yellow tailed out wire to the positive post. then see if you can get your cd player to turn on. if it wont its a problem with the cd player. if it does turn on check your wiring back inside the car.

 

[puregunpoore06 10+ year member]

man yall r great...it was the screw i grounded it 2... it was metal but there was plastic around it... i got everything hooked up and it sounds good on the radio...but one problem.... when i stick a cd in...there is no sound...it plays the cd but just no sound...any suggestions...lol im almost done

 

[Vestax 10+ year member]

man yall r great...it was the screw i grounded it 2... it was metal but there was plastic around it... i got everything hooked up and it sounds good on the radio...but one problem.... when i stick a cd in...there is no sound...it plays the cd but just no sound...any suggestions...lol im almost done

Do you have a Grand Cherokee? If so, you might have an amplified Infinity system. Go to your backseat, and lift the seat, you'll see a stock amplifier. You may have to wire the speakers from there.

 

[KaeZoo 10+ year member]

Do you have a Grand Cherokee? If so, you might have an amplified Infinity system. Go to your backseat, and lift the seat, you'll see a stock amplifier. You may have to wire the speakers from there.

Alternately, find the green/red wire behind the head unit and connect it to your head unit's blue/white wire to turn on the factory amplifier.

 

[Pyro_By_Nature 5,000+ posts]

IIRC for the infinity amplifier to work, you have to connect your HU's ground to the black wire that's attached to a female spade connector that was in the back of the factory radio.