Speaker Problems i installed an aftermarket sterio in my car includ cd player 2 subs and 2 amps when i turn it on none of the speakers work but if i unplug my subs then the front speakers work i checked all my cables speaker,power and rem line and none of them are grounding could i have a different problem??

either your connectors need cleaning or maybe a break in the wiring. Is there on spot where both wires come together if so check there.If there is any plugs, pull them apart and clean them with contact cleaner

depending on how many channels the amp is, you may not be able to hook everything up to it.

usually you have a separate amp for subs. 4 channel amp for the speakers in the car, and a mono amp for the subs.

To hook them all up to the same amp you would need an amp with 5 channels. It wouldn't work out right.

If you have a mono amp its only for subs.

If you have a 2 channel you can either hook it up to the rear speakers or bridge them to mono to run the subs.


you need a channel per speaker basically.

Hi, if you still need a photocopy of instructions email me [email protected]

If you want instructions in brief this involves POWER CONNECTIONS, PHONO LEAD & SPEAKER CONNECTIONS:

POWER (At the same time when routing these wires, I would connect the PHONO LEADS from the car cd player to the amp, if your car cd player only has 1 preout (1red & 1 white) then you will need two phono splitters, a female to 2 males. Phono leads carry the unamplified sound from cd player to the amp):
~ Permanent 12V+ (Thick lead that is fused direct from battery all the way to the amp, wire must be 20a to 30a +, hence 1cm diameter wire, known as AWG8, Maplin sell cheaper kits then most)
~ Amp REMOTE (A thin insulated cable (5a is OK) from car cd player amp remote wire, this turns the amp on when the cd player is on, if your car doesn't have an amp remote wire, suggest nearest ignition supply or seperate switch that you turn on when you want to turn on the amp)
~ GrouND 12V- (Insulated lead (20a to 30a) to nearest part of unpainted car chassis such as interior panel screw hole, instead of an insulated cable all the way from the batery, this is common practise.

SPEAKER:
Each speaker has a - negative & + positive, these must connected correctly. The amp has 4 channel, 2 channel labeled as front, 2 channels labeled as rear. Using speaker wire, connect cable from amp to speakers. Note: Ensure the speakers being connected only receive sound from the amp (Not cd player as well, as would damage players or at the very least impair sound)
The amp has a feature called bridgeable this means a sub 8" or 10" sub can be powered by 'bridging' two channels. For example there are 2 ways to bridge power a Sub on the NIKKAI EAPA450:
i) Sub speaker wire positive + to channel RL and Sub speaker wire negative - to channel RR.
OR
ii) Sub speaker wire positive + to channel FL and Sub speaker wire negative - to channel FR.

Switches:
~ Bass boost, meant to be on for a channel if using sub, otherwise off.
~ X-over mode adjust hi/lo frequencies, only work if both x-over switches are on! Then adjust switch frequency knob, until it sounds right.
~ Gain (Volume knob) adjust volume knob up or down, until it sounds right!

NOTE:
You will need patience! many hand tools and parts such as: Wiring kit, fuse holder 20a/30a, Phono leads, speaker cable, Fork/ring connectors, wire strippers, wire cutters, set of screw drivers, also ueful to have zip ties to tdy excess cable and 'P' cable clips to tidy speaker wire to shelf, etc.

OK

Any more questions just email me [email protected]

you can do one of 2 things , run wires from each speaker to the head units speaker wires or locate an amp bypass harness from www.metra.com, sometimes theres a tiny amp on each speaker as well , i doubt it for the year of youre truck but it may have at least a factory amp . u need that bypass harness

YES!! You used the blue wire to turn on factory amp (blue wire to GM pink) you NEED to use the Blue/White wire. That is the amp turn on. The blue wire goes dead when you play a CD or DVD because it's for a power antenna. So, Blue/White ok?

Enjoy,

Larry T
Winona Lake, IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html

I had the same problem and here's what fixed it. By default, I did not connect the blue/white striped remote wire to the harness. Apparently there is an amp somewhere in the vehicle I did not know about. After looking at the factory wiring and the aftermarket harness, I noticed that the remote wire was used and I connected it with the remote wire on the harness and everything came up and worked perfect.

Hi , you need to replace with thick wire , if possible attache fuse or circuit trip overload protection you may ask to thew radio store .

If you followed the instructions correctly, then the amp must be defective. This is sort of simple.

My generic suggestions:
You have the power, the ground, the outputs to the speakers, and then the input.

Make sure that none of the speaker wires are somehow being grounded. Make sure that nothing is shorted that feeds the speakers.


Jerry G.

MAKE SURE NO SPEAKER WIRES ARE TOUCHIN THE OTHER, IF DONT WORK.. YOU WILL NEED TO TOUCH TWO WIRE AT A TIME, DID YOU HEAR SOUND BE4 INSTALLING

You most likely have a shorted or damaged speaker, which is causing the internal amp chip to shut down (but does not affect the preamp outputs). A test you can do is to fade to one speaker at a time and turn it up to se if it shuts down. Repeat with each speaker until you find the one that causes the fault. Then replace it.