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2002 Eldorado Bose radio - intermittent no radio, ground

2803 Views 5 Replies 6 Participants Last post by  Bigbird8855
2002 Eldorado Bose

I've searched and found nothing definitive, so thought I'd ask again.

If car sits for 2-3 days without starting the radio will not 'turn on', no display, antenna is not powering up, no sound, no controls. Clock display works all the time. Radio is not losing presets when i disconnect ground.

If I disconnect ground at battery (as had been commented on in several posts), it 'clears' and works perfectly, antenna powers up, etc.

While I can't say with 100% certainty, I THINK I can say that if I drive car every day it doesn't recreate.

But I can't get out and disconnect battery every time I want to play radio. Something isn't 'right'.

It has the 12 disc changer, and I've just removed the cartridge to see if the Changer is somehow or another trying to read the discs or somehow draining battery. But no result to report on that one yet.

I'm not getting a theft/lock code or anything like that.

I haven't had the car very long, so I don't know how old the battery is, but I doubt a few days drain would affect the radio coming or, nor would disconnecting ground 'restore' the battery per se. I assume it has to be a module issue? Or at least something that has to be 'rebooted/cleared'. But that's just a guess.

No current codes. History had a low battery volt code and one EEPROM memory, but don't know how old they were. I'm also going to pick up a multimeter that has right settings to test if there is any battery drain going on.

I didn't know if anyone has seen anything like this before. I can keep chasing, but would like to avoid too many goose chases if someone has some direction for me.

Thanks for any insights.
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Hello fellow radio guys. I have a similar problem on my 1984 Eldorado. I installed and aftermarket Kenwood with a 900 watt amplifier and sub woofers. Everything worked fine for about 8 years then recently it started cutting out. Total loss of power so it would power down then a minute later come back on. I checked all the connectors to make sure there were no bad connections, with no results. So I got under the dash to inspect the fuse box. Lo and behold the 10 amp fuse was blown. One of those fuses that lights up when it blows. High tech. Anyway, I was elated and knew this was the problem. I replaced the fuse and tried it out. Same thing happens. What I don't understand is how the whole system worked with a blown fuse. For me a blown fuse means no power. But with the first fuse it worked intermittently. I guess I'll try the cable trick to see what happens but from an electrical point of view I'm still baffled how it was working. With the new fuse installed everything dies when I remove it. Any ideas would be appreciated. Thanks, Big Bird
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