I have just fitted a new sony head unit to my 98 vectra. I wanted to use my sub and amp but i am not getting any lights on the amp??

 

I have a good earth and a live as i have tested for these and all the fueses are good

 

Any ideas??

 

Dave

and you have power to the remote wire as well ?

where have you earthed it to

 

i ask beacuse a mate of mine fits amps ect and some cars you have to put the earth under or in front of the rear seats

 

carnt remember why buts its summit todo with interferance just try a tempery earth somewhere different

 

matt

Thats to do with sound interference though, wont prevent the amp from powering up.

 

Check you are getting a proper earth and 12v with a Multimeter though.

and you have power to the remote wire as well ?

 

Is that the blue and white wire to the amp??

Is that the blue and white wire to the amp??

 

its a single wire feed, there will be a place for it on the amp.

 

You should have inputting the amp:

 

1. a 12v permanant feed from battery. (needs to be thick enough gauge for the amp power rating)

2. an Earth to a secure place on the chassis (or the battery)

3. a 12v remote feed

4. Phono/RCA leads from Headunit

 

and then Speaker wires for output.

 

The remote feed is a 12v feed from an Ignition source, usually from one of the stereo outputs. It basically tells the amp to power on/off when stereo is turned on.

Edited April 19, 200916 yr by Yowser

Is that the blue and white wire to the amp??

 

My amp remote wire is blue.

if you are using a Amp wiring kit, the remote wire is usually joined in the middle of the phono/rca leads to make routing the wires easier

there is no live coming from the unit to the amp. That mean its a faulty system??

if you have no remote wire the amp wont turn on, can wire it into the back of the headunit, will usually have either a tag saying REM or have it written onto the cable. the wire in your kit will be Blue or green (usually) and really thin.

Sorry the wire is there just no power running from it :headvswal

The wire goes from the amp to your headunit ? Whats it wired to on the headunit ? You can wire it to any 12v feed that is on with the ignition (stereo remote output would be better becuase then its only on when stereo is on, but makes no real difference)

 

If it is wired to Amp remote output from Headunit then headunit may even have a option in the menu to turn off the remote feed, so you can turn the amp on and off with your headunit. Depends on your specific headunit settings.

Edited April 19, 200916 yr by Yowser

have you tried the radio on the head unit ? reason i say this is, sony had a habit of having 2 blue remote wires, one was blue, the other blue with white stripe. one only powered an amp up when the radio was turned on, if you had anything else on then the amp would turn off. if this is not the case & you have only 1 blue wire, then the unit is faulty, which is common anyway on the remote feed. only solution is to connect the remote wire in with the red wire, then it will come on with the ign

Sorted the problem out. The REM wire out of the back of the unit was dead (on a new unit to) so i went into the yellow wire with a bullet connector (ignition live) then to the amp as this wire was live,

 

Still nothing?? So i ended up changing the new REM wire with a new one and job done perfect sound.

 

So the REM wire in the back of the system was faulty, Also faulty was the long REM wire that came with the fitting kit and all parts are brand new :mad:

Crikey thats a good piece of solving mate! You would never have expected that!