KD-S611 Power Problem

[robburne]

Hi guys,

I'm looking for some advice regarding the installation of JVC KD-S611 head unit in a Mark II VW Golf. It has been a while since I have fitted a car radio and so I'm a little lost.

In short, I can't get the unit to power up. I have identified the following earth and live connections in the car:

Brown: Earth

Red: Live (wire has a fuse break)

From the JVC head unit (according to the radio manual):

Black: Earth

Yellow: "to a live terminal box connecting to the battery (bypassing the ignition)"

Red: "to an accessory terminal in the fuse box"

I'm a little confused as to the reason for the red and yellow off the head unit. but I am guessing this is to have the unit only work when/if the keys are in the ignition. But what if I just want the unit live with ignition switched off, should I wire the red and yellow together?

I have tried most combinations but just can't get it to power up - any suggestions would be appreciated.

Thank you in advance.

Rob.

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[AlterEgo99 5,000+ posts]

Egads...OK...slow down hoss! //content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

First, I'm assuming the JVC came with a harness that you are then wiring to the harness in your Golf? Or did you pick up an OEM harness kit? Places like Crutchfield have those so you can exactly match wire for wire.

Yellow is constant 12VDC...this is used for the HU's memory. This is so when the car is off, all of your audio and other settings in the HU aren't wiped. Trust me, you need it.

Red is ignition. This is so the HU will actually turn on when you start the car or place your ignition key into the start or accessory position.

Black is ground.

Your best friend when troubleshooting is a $20 DMM (Digital Multimeter). Use it to check the wires you think are the correct wires in the Golf.

 

[robburne]

Thanks for the reply.

Yes I am using the harness that came with the HU. however the harness of the Golf has already had the wires cut as previously there was another (not original) HU in the car.

Would the Golf necessarily have an accessory/ignition hook-up. According to the Golf manual there are 4 coonections:

Red - Permanent +

Brown - Earth

Grey/Blue - Instrument Panel Lighting

Blue/White - Speed signal for automatic volume control

I have a multimeter at home which I'll pick up tomorrow and test with.

Thanks,

Rob.