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I just installed a used Kenwood KDC-415s CD receiver in my 88 F-150. Everything works great except for one thing. If I turn it up above conversational volume, it drops out every 10/30 seconds for 1 or 2 seconds, (the more volume, the more often it occurs), then starts up where it left off. I've got a Kenwood KDC-s5009 in my 83 F-150, which is pushing more speakers at MUCH higher volume, without a problem! Does this sound like something that (1) can be repaired? and (2) would it be cost effective?
I'm island bound in southeast Alaska, so I can't just drive down to the local car stereo center to have it looked at, (there isn't one). All input will be appreciated!
Are the speakers its unning stock? Stock speaker sometimes run ridiculous ohm loads that will cause a aftermarket deck design for only 4 ohms to crap out like you say. Same goes for doubling up speakers to each connection. A blown speaker in the mix will do the same.
NOTE: Kenwoods have a unusually high failure rate.
I'm glad you reminded me to check! The front door speakers are still the orignal FoMoCo's that came with the Ford AM/FM radio, as far as I know. Everything I installed is 4 Ohm, but your right, a lot of OEM speakers are 8 OHM. I just haven't dealt with any OEM's for quite a while, so it didn't occur to me to look first. I'll let you know what I find when I get a chance to pull a door panel.
I can see how that might be a factor. I don't relish the idea of tearing my steering column apart, so I think what I'll do is pick up a headlight relay or horn relay or other similar type. Then use the existing wire to activate the relay. Use 8 or 10 ga. wire from the battery to the relay & on to the receiver. There would still be the small ga. wire entering the unit but that would just be a "local restriction" so should still work OK. Hope that does the trick!
I got into the door speakers today and sure enough they were the originals and obviously low end. They had no markings at all. I'm guessing they were probably 8 ohm. I replaced them with some other ford units I had that were marked as 3.2 ohms. It has made a big difference! However, it hasn't totally eliminated the problem. It still does the same thing, but at much, much higher volume. As it is, it is acceptable, but as I get time I will try the heavier wire to provide juice to the head unit.
With the Fords ( JBL ) providing treble up front & Rockford-Fosgate 3 ways (8" woofers, mid-range horns & tweeters, behind the seat, it sounds pretty sweet!
Thanks to Renegadesrun & hotmod046 for the ideas. Will post again when I get a chance to try the heavier wire.
I Finally Got My Problem All Sorted Out. Turned Out It Was
Insufficient Ground. I Put A #10 Wire From The Frame Of The Receiver To The Metal Dash Supports And Away It Went. No Limit To The Volume Now, Other Than What My Ears Can Handle!
Sounds like the HU is tired and should be retired. If it stops reading the disc the sensor inside is bad or the motor unit is shot that powers the reader inside.
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