Trouble with volume and current drive cuts out

The speaker may have a current sensing device to avoid damage under high volume conditions. Also check the setting of your bass control. Every 3 db increase in setting doubles the power going to the driver and it is easy to over drive the unit at high volumes if your bass control is not on flat.

That should be answerable but first read the instructions they contain some amazing information. I can not help you because I have no idea of what you want to know.

This is what your codes mean:

Trouble Code-P0734 (A/T Additional Gear Ratio Error In Fourth Gear)


Trouble Code Conditions:
Vehicle driven to a speed of 4-37 mph at more than 500 rpm, gear selector in 4th Gear in Drive, and the PCM detected too much difference in the engine speed and output shaft speed.
Possible Causes:

• Customer may complain of intermittent 4th gear operation
  
• O/D and 2/4 pressures less than 75 psi
  
• O/D or 2/4 clutch volume indexes out of specification
  
• O/D accumulator seals are damaged
  
• Transmission enters "limp in" mode running in 4th gear
  

Trouble Code-P0735 (A/T Gear Ratio Error Fourth Prime)

Trouble Code Conditions:
Vehicle driven any forward Gear, and the TCM detected the ratio of the Input speed to the Output Speed did not match the current Gear Ratio (this test can take up to 5 minutes).
Possible Causes:

• Related Gear Ratio trouble codes may be stored (note that some of these Gear Ratio trouble codes may be intermittent)
  
• Transmission has internal problems or damage present
  

You have a transmission problem.Hope this helps, James Booth

What's probably happening is that the amplifier is shutting down or cutting back the volume as protection from damage. You may have a partial short in the speaker wiring that is not a problem at lower levels, but at higher ones causes the amp to see too low a load. There may a problem with a speaker or crossover component that is breaking down at higher volumes. Or something in the amp's output stage is unable to handle the load.

Test the system with a known good speaker system and length of wire and see if the trouble continues. If it does, you'll know it's the amplifier that needs to be checked. If the test speakers can reach normal volume, you can start checking the wiring and other speakers for the source of the trouble.

check your speaker impedance by multimeter normally speaker ohms range from 8,6 or 4 ohms see your speaker spec. possibility speaker short, so impedance become too low when driving with strong bass become over current and cut out. if this is the problem the only solution is change the speaker only.

you should have it repaired.the audio circuit is malfunctioning because of the sudden burst/surge of current.

This is cause by many things one of which is a faulty speaker that is going short when operated at high volume. Another is the wiring supply the power to the radio is not "thick" enough hence not able to supply the demand for extra current. Had this same problem with Golf II which I replaced the main supply wire and after that it went to full volume with no cutting off.

The over-current LED tells you that you're driving a lod lower than the amp is rated to drive. You either have the wrong speaker ohm load, a shorted wire or a defective speaker.

Check the power /voltage printed at back side of speaker ,test w/ volt meter /if supply not enough current to drive the amplifier.The sound are very low and humming.

You may have speakers of an incorrect impedance attached to the unit since the problem occurs when audio signal level is increased and the current goes up.The unit is shutting down to prevent damage. I would check the speaker connections and make sure that the speakers impedance are matched for the unit you are using.