With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.
GM09SR installed April 2009 in 2006 Trailblazer, Radio sometimes will not turn on/off when key is...
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GM09SR installed April 2009 in 2006 Trailblazer, Radio sometimes will not turn on/off when key is turned on/off, the chimes quit working, etc. When this happens I can "reboot" by disconnecting the car battery cable, after which the Chime and other functions return to normal. Radio used with this is Sony MEX-BT3700U, replacing GM factory basic radio (no bose, satellite, etc) After disconnecting power at battery I have to re-enter all the radio button station presets, bluetooth pairing, etc. Is there a known specific cause, and solution other than disconnecting battery cable?
i was driving down the road and the adio just shut off on my kvt911dvd. no noises or electrical...
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i was driving down the road and the adio just shut off on my kvt911dvd. no noises or electrical smells, it just quitely shut off. it still works fine and the video will still play just no sound. any suggestions