Audio Systems: amp relay wiring, technical data sheet, band eq


Question
QUESTION: I picked up 3 relays (i was told i need one for each amp)"the installer bay"12VDC 30/40A.I was told the numbers on the prongs were as follows #30constant power,#85ground,#86head unit remote,#87amp remote.but the colored wires on the harness it came with are way off.
#30 is blue,#85 is white,#86 is black,#87a is red,#87 is yellow.
how should i wire these relays?an does the metal ring on the relay mean it has to be grounded?

ANSWER: Can you give me a part number or model number on the relays you are talking about?  It is impossible to know what you have got. There are tons of relay makers all with different ideas about how they are wired and used.  

Chances are the manufacturer has a complete technical data sheet that will provide you with all you need to know.

And, is this a custom install or replacement of OEM head stuff?

So, tell me more and we can go from there.

PS: For an example of some universal relay wiring diagrams and color coding, check this out - but not all relays are the same:

http://www.caralarm.com/manuals-install/Crime%20Guard/850i4e.pdf



---------- FOLLOW-UP ----------

QUESTION: its not a replacement.i have 3 amp remote turn ons and an equalizer turn on.all twisted to the head unit remotei had a solid distributer block wired to the eq,an 3 amps constant power.i switched to a fused block.now one of the amps turns on then off right away.i figure i need relays.
the relays are IBR30 40amp relay & socket 12"leads
the brand name is "THE INSTALL BAY"installation hardware
other components are:
head units:panasonic HR1003U
EQ:alpine 11 band eq/soundfield controller 3324
amps:koiler XM7676 600watt with a 1farad tsunami inline
    powerzone P500.2 500watt with a 1 farad tsunami inline
    powerzone P1600.4 600watt

Answer
Did you charge of the power caps properly before initializing the system?  If the caps are not charge before they are installed the inrush current will over come the power capacity of the dc supply.

Therefore, your problem may be solved with the proper charging of the caps.  They are very particular how they are used in an audio system because of the charging current that they consume - requiring them to be handled very carefully as the instructions tell you for their installation.

http://www.caraudiohelp.com/car_audio_capacitor_installation/car_audio_capacitor

Above is one way to charge using 1K resistor.  Some come with a lamp that is in series with the charging current and tells you when the light goes out the cap is charged up. I am not experienced with what Tsunami caps recommend but you can read through their installation procedures.

Hope this helps.