Mine is actually a q4000 4 channel amp

Could be fried, or connections are wrong and its not getting a good ground. If you're not getting power most likely its fried. Check fuses etc. Take it to a brandsmart and have them test it

bad connection to the ground

Should the amplifier go into protect mode, simply disconnect all RCA and speaker leads, while keeping +12 volt, power ground and remote leads connected.

1. Now turn the amplifier back on, and if the diagnostic LED lights, the amplifier has an internal fault.

2. If not, plug the RCA cables back, and reset the amplifier. If it goes into diagnostic now, the fault lies in the input, either with bad cables or source unit.

3. If the amplifier seems fine with RCA cables plugged in, connect the speakers, one at a time, and if one of the speakers or its wiring is faulty, it will activate the diagnostic
system.

try hooking the amp up with 3 wires, the red power wire, the black ground wire, and the remote wire, do not hook up the speakers at this time

Your amp could be in protection mode! Sometimes turning up to high or wires touching will put in protection mode! It will have to be unplugged for a day or two to drain all power out of the memory. Leave accessorie/ignition wire hooked up, just not power and ground wiring. It should reset itself.

Yes, keep in mind that the amps have a constant power (the large red wire) and need a remote signal to tell them when to turn on/off. This wire connect to a switched 12v from the ignition or radio blue wire (if aftermarket)

do you have power at both supplys on the wire harness?( red and yellow) red wire will have power with the key on. Also make sure your ground is hooked up right.

Hello cjfatback,

You want the blue/white wire.

Here's what the manual shows:

Red - Power (to ACC in vehicle)
Black - Ground
Yellow - 12V positive (battery lead)
Blue/White - External Amplifier Control Lead
White - Left Front Spkr +
White/Black - Left Front Spkr -
Gray - Right Front Spkr +
Gray/Black - Right Front Spkr -
Green - Left Rear Spkr +
Green/Black - Left Rear Spkr -
Violet - Right Rear Spkr +
Violet/Black - Right Rear Spkr -
The red and white RCA pigtail leads is for AUX input
Left set of Preamp Outputs - Rear Channels
Right set of Preamp Outputs - Front Channels
Only Models C3433U, C3304U, and C3333U have a 2nd set of RCA pigtail leads for subwoofer output.

Hope this helps.

RED LIGHT MEANS THERE IS EITHER WIRES TOUCHING OR A BAD GROUND. IN WORSE CASE SCENERIO THE A CHANNEL IS BLOWN

look at these and only these... power or ground...either your power wire has grounded out somewhere (ud be surprised) or youdont have a good enough ground....i would check the ground first....hopefully this helps