cobalt123

So my other amp, first pic is kaput, and a bought this rockford fosgate punch 60.2 off a friend just to get my kickers working for the time being, should have been easy. So ill post pics then ask question.

BMW Nitro 2000W 2 Channel Amp




Rockford Fosgate Punch 60.2 Amp







My question is why isnt this working, all other wire connections have been checked no loose, or not connected wire found. Took apart dash and checked headunit those are all connected as they should be. Kicker subs are 12in comps

silver06cobalt

grounded good? did you scrape all the paint off the metal when you grounded it?

cobalt123

the grounding spot could be better, hang on i gotta a pic of it

ctcsoccer7

do you own a DMM...DIGITAL MULTIMETER?

cobalt123

heres some how the old amp was put in




well i thought i had a pic,



yeah i do own a meter, guess i should try that, the grounding however should have been to the bat. neg. terminal but the spot its at should suffice to work

ctcsoccer7

i would check to see if you are getting voltage on 12Volts and check the switched wire? and then check the ground for continuity!

cobalt123

well actually about the blue wire, it runs from the amp up to the headunit, power supply i beleive for the amp itself, maybe thats it, the one on the fosgate says REM but the BMW amp is RMM any difference, btw im a mechanical guy not electrical so im a newb at this stuff

ctcsoccer7

basically check to see if the wire goes to 12v when the key is turned on and then goes to 0v when the key is off

cobalt123

ill do that, any other option if that is going from 12v to 0v when keys goes on to off, i dont want to keep going back and forsth from computer to car alot lol

ctcsoccer7

grounding issue....subs blown? amps blown? blown power fuse?

cobalt123

aight guys, thanks for tips, im gonna go check everything out now, ill update manana...adios

Spun

iTrader: (1)

I'm sure you ment to do this but I did notice that the RCA's are not connected to the RF.

I can't remember if that year/model Fosgate had a fuse right on the amp or you needed to put one inline but check the fuse none the less.

Are you getting power, does the red light on the side of the amp come on

This will help to determain if it is a power or signal issue

EmperorJJ1

iTrader: (5)

^^^ lol i saw that and i was like WTF... ya ur rcas are basiclly not connected. the outer shield isnt touching at all

no internal fuse on those a series amps

cobalt123

the wires you are refering to were pulled out to show the colors of where they were going into, they are pushed all the way in, i got an inline fuse on the 12v red wire

EmperorJJ1

iTrader: (5)

check everything with a multi meter and throw that nitro away

cobalt123

there are some leds in the nitro that still work im want to take them out for use elsewhere, otherwise it would already be there

i gotz the multi meter, gotta get some new batts for it,

Spun

iTrader: (1)

Ok
But does it power up, does the red LED come on with the amp?

This may be a long shot but I noticed a little white residue on the bottom of the speaker output.
Is it possible at all that your friend had a little water damage done to the amp

cobalt123

thats possible, ill take it out and clean it up as well, isopropyl alcohol should work without any more damage?

EmperorJJ1

iTrader: (5)

um i probably wouldnt... take off the back cover and send me some pics

cobalt123

will do, im at work now but i get off at 800a ill get em up, i looked at it myself didnt see any resistors or anything burnt out

cobalt123

bump

EmperorJJ1

iTrader: (5)

amp looks good internally. ull need to get a DMM to test any further really. theres all kinds of problems it could be as mentioned in this thread

Spun

iTrader: (1)

Is that your remote wire in the first pic?
You know that one end that is sticking out is still live right?

When you get some batteries for your multi meter test the remote wire and see if its putting out 12volts . If it is the remote wire then in any case having an open ended live wire behind your HU with all that sheet metal to short itself out on is IMO a bad idea. Might want to tape it up.

p_hanson

Never use butt connectors to install a car stereo. Solder and heatshrink is the only way to go. Check all connections through the butt connectors with a DMM.

ctcsoccer7

i disagree , ever heard of a cold solder joint? or over time the solder bending and breaking in two? The best way to install it, is to have a TRUE PRO do it!