Rubikahn Posted September 20, 2021 Share Posted September 20, 2021 So I’m trying to track down why the radio doesn’t work in my 89. So far this is what I’ve troubleshot. Pink wire constant 12 volts Acc on Blue/white stripe 12 volts Purple/orange stripe 12 volts Does this sound correct? Looked at the harness pin out and thought maybe it was missing one side of a terminal. Checked out the radio harness connector on my parts Comanche and it looked the same. I’ve tried two different stock radios. One won’t turn on at all. The other turns on but you can barely see the display, and I have no audio. I’ve swapped the 7.5 fuse on both even though the fuse in them looked good. I guess it’s possible I have two bad radios? One was in my 89 and the other is from the parts truck. The one on the left is the one that actually turns on. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted September 20, 2021 Share Posted September 20, 2021 This sounds like the perfect question for @Minuit Link to comment Share on other sites More sharing options...
Minuit Posted September 20, 2021 Share Posted September 20, 2021 Link to comment Share on other sites More sharing options...
Minuit Posted September 20, 2021 Share Posted September 20, 2021 It is quite possible that the lcd backlight bulbs on the one radio are burnt out. If the wiring checks out and speakers are present, all it can be is the radio. Link to comment Share on other sites More sharing options...
Rubikahn Posted September 21, 2021 Author Share Posted September 21, 2021 2 hours ago, Minuit said: It is quite possible that the lcd backlight bulbs on the one radio are burnt out. If the wiring checks out and speakers are present, all it can be is the radio. Thank you, and yeah that’s what I was leaning towards but didn’t want confirmed 🤣 Looks like I’m gonna have to look around for one Link to comment Share on other sites More sharing options...
Pete M Posted September 21, 2021 Share Posted September 21, 2021 the radios are most definitely repairable. though I'd hesitate digging too much into one if it was made in Korea. t he made in Japan ones are way better built and worth restoring. Link to comment Share on other sites More sharing options...
dasbulliwagen Posted September 21, 2021 Share Posted September 21, 2021 IF you buy a cheap replacement, DO NOT CUT INTO YOUR STOCK RADIO CONNECTOR. There are adapter connectors out there for wiring in aftermarket radios to the stock body side connector. When I did mine, I took the mounting bracket off my original radio, used a large stainless band clamp to attach it, and then mounted the whole thing in the hole the same as stock. If you like the stock radio, there are places that will rebuild them. Do a little research and youll find something. Link to comment Share on other sites More sharing options...
Rubikahn Posted October 16, 2021 Author Share Posted October 16, 2021 Updating this thread. Looks like both radios I had were bad. Got a new to me one from 88mjsally and I’m back in business. Thanks bud! IMG_4619.MOV Link to comment Share on other sites More sharing options...
Pete M Posted October 18, 2021 Share Posted October 18, 2021 Link to comment Share on other sites More sharing options...
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