I just iinstalled my 915 and am having the following problem. When the unit is playing the radio it works fine, if the SRC is changed to any other source (ie. TV, DVD, Disk Changer) the blue Amp control wire turns off so I loose all sound, if I jumper the amp control wire so I get +12v to the amp's they will turn on and my sound for any source I select can be heard. Am I missing something?? the problem is very repeatable, any time the tuner is selected the blue amp wire has +12v if any other source is selected it drops to zero... HELP...
Your amps are tied intothe power antenna lead coming off the radio, they need to go to the amp turn on lead. There are two wires ( I don't remember which is which) blue and blue/white. Whatever you are using now switch to the other one.
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Wow, I changed it as you stated (blue/white to Amp control) and all is working fine. I checked the book again and it shows blue/white as the antenna wire and the blue as the power control wire but that sure does not seem to be the case on my unit... Thanks soooo much for your help.