Printer Friendly Forum Posts - Installed Deck, powers on, but no sound

Hi all,

I just installed my JVC SH909 into my 02 grand caravan.

I double and triple checked the wires from the harness and kit and stock harness... and made sure they all matched up. the deck Powers on, plays the files, but then there would be no sound to the speakers...

My Caravan dosn't have the optional inifiniti system, so there is no amp... and I checked my stock harness, there is no cord for connecting to the amp neither.

There is only the PCI Bus wire that is not connected to any thing... am I suppose to connect this to my JVC?

can any one help and solve my problem :(

It pays cds and not the radio?

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~The Rookie~
Rookie of the year that is...
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Teamrf wrote:

It pays cds and not the radio?

it plays both

i should mention

the deck powers on and plays both CDs and raido fine (u can see the EQ graphics jumping), but there would be no sound to the speakers.

I plugged the unit into my friend's car and it works fine.. and then right back into the van and there would be no sound again :(

maybe the amp in the jvc is no good.

or maybe u need a seperate external amp for that model jvc.

check for a amp anyway, check under the seats and the far rear panels.

just 3 ideas on my part.

goodluck

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sexyvic1 wrote:

maybe the amp in the jvc is no good.
or maybe u need a seperate external amp for that model jvc.
check for a amp anyway, check under the seats and the far rear panels.
just 3 ideas on my part.
goodluck

thx, but the deck works fine in my friend's car.. :(

there is no amp.. i have the stock AM/FM CD deck.. not the infitini deck.. and the stock harness does not have a blue w/ white 12V wire for powering up the amp :S

this is so weird..

u can try pop testing the speaker wires and see if anything a hapens.

get your self a 9volt battery and take the speaker wires from the fornt drivers door get the neg and pos and put them to the 9volt baterry. one wire on each terminal. if u here the speaker may a crackle noise then it should play. then i have no idea but try that with each speaker.

there is a chance u wired it wrong. it happens. try that with each pair of speakers. like i said if they crackle then it is right but if u hear nothing then u take it from there.

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i should add , when i say front drivers door i mean behind the deck. where u spliced into the wires not at the actual; door

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Open your fuse box under the hood and look inside the cover for a relay titled NBS. If you have a relay in the socket, you have a factory amp. Post back if so and I will tell you how to make it work.

2 things to check being that its a Caravan. First make sure that if you have a grounding strap, that there isnt another wire that was attached to it before that also needs to be grounded, I have seen that before. Also if you are using the adapter harness put the blue power antenna wire on the harness to the blue white wire off the deck. Sometimes it needs to be powered to get the speakers to play, regardless of whether its the infinity system or not.

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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

tech460 wrote:

Open your fuse box under the hood and look inside the cover for a relay titled NBS. If you have a relay in the socket, you have a factory amp. Post back if so and I will tell you how to make it work.

Hi there,

I just checked the fuse box and yes there is a reply in the NBS socket.

and I went to the place where i picked up the kit and harness adaptor, the guy there told me there should be an amp too. But he was amazed when I told him that on my stock stereo harness, there isn't a wire that's suppose to power on the amp.

so what should I do? :(

for chryslers it would be a blue wire on the harness that turns the amp on. but if the jvc has a blue and blu/white, just use the blue/white, not blue so the amp stays on all the time and not just when the radio is on.

audifive wrote:

for chryslers it would be a blue wire on the harness that turns the amp on. but if the jvc has a blue and blu/white, just use the blue/white, not blue so the amp stays on all the time and not just when the radio is on.

i know, but my harness does not have the amp turn-on wire. That's why it's so strange :S

audifive wrote:

for chryslers it would be a blue wire on the harness that turns the amp on. but if the jvc has a blue and blu/white, just use the blue/white, not blue so the amp stays on all the time and not just when the radio is on.

i know, but my stock stereo harness does not have the amp turn-on wire. That's why it's so strange :S

sometimes the factory decks also have an amp ground attached to them on the ones that use the big metal ground strap. its usually a black wire that is clipped onto the factory deck but is not part of the main harness. if that is there, then it must also be grounded for the amp to work properly. if thats not the case, test the speakers with a battery like someone else suggested previously. if any of them do not make sound, they could be blown and causing the amp in the jvc to shut down. in that case, just cut the connection to that speaker and see if the jvc works. i know that pioneers are very sensitive to bad speakers, not sure about jvc though since i havent come across that yet with one.

Harlem2k wrote:

[QUOTE=tech460]
/QUOTE] Hi there,
I just checked the fuse box and yes there is a reply in the NBS socket.
and I went to the place where i picked up the kit and harness adaptor, the guy there told me there should be an amp too. But he was amazed when I told him that on my stock stereo harness, there isn't a wire that's suppose to power on the amp.
so what should I do? :(

try finding the amp and just bypass it.

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if the worst comes the worst just re wire ur speakers. i have done this a million of times.

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