yep
HELP! Replacing premium sound head unit
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Senior User
Joined: Aug 2003
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From: Webster, TX
HELP! Replacing premium sound head unit
I have 1988 Ford Econoline Clubwagon Van (E-150) with premium sound system. I replaced the factory stereo with a Pioneer head unit using harnesses specfied by Scosche (Part#FD02B). Head unit powers up, but no sound. I have read that the premium sound sytem has an amp that has to be powered up or bypassed. I connected the remote power wire (blue) to the blue remote wire on the harness, but nothing happens. How do I connect the amp for power or bypass it? I also noticed that on the vehicle harness it only has 5 wires for the speakers instead of 8. It appears to be the positive outputs for the speakers and one ground. How does this work? I am fairly familiar with installing auto sound systems and electronics, but I don't know what to do anymore. I am baffled, please help. Any info would be great and a schematic for a premium sound system would be a big help, also.
Thanks
Thanks
Last edited by nuts4hotwheels; Oct 15, 2005 at 06:35 PM.
New User
Joined: Jun 2003
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From: Galloway, OH
My mustang had that problem
I had to buy another connector that was pretty pricey and disconnect the amp by the kick panel and run through the adapter rather than the amp. Do a search on the12volt.com and just include ford premium bypass in the search. Something will come up
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Joined: Jun 2003
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From: Galloway, OH
found the dela. I think I paid 40 bucks for mine. This is a great deal.
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Senior User
Joined: Aug 2003
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From: Webster, TX
Problem solved
I went to Best Buy and found the correct kit with harness to bypass the amp, but it was $20 and I didn't have the money right now. To make a long story short, I cut the output harness from the amp and made a harness that goes from the head unit to the spearker connection. It works fine but, now I am worried about blowing the factory speakers. Does anybody know what wattage they are rated for? My stereo puts out 35wx4.
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From: Galloway, OH
Your rating for your receiver is probably a max rating and not actual or RMS.
Your rating for your receiver is probably a max rating and not actual or RMS. Most give an outrageous number when actual power is probably half that. Your speaker are probably not powerful enough but usually we just go by the "if its distorted, theyll blow" rule. I would probably blow them just for an excuse to upgrade 
. Anyway, the factory sound systems are improving but they are just that....improving.
. Anyway, the factory sound systems are improving but they are just that....improving.
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From: Durant, OK (SOSU)
Yeah your HU can and probably will overpower those speakers eventually, probably sooner rather than later. Either way, that can be your next thing to get, like sxewhodey said, excuse for upgrade! 35W x 4 isn't all that bad, my old HU was 50W x 4 and it blew one of my Ranger's stock speakers before too long (it distorted at 70/100 volume, blew at 80), but I was upgrading anyways. New HU is even bigger, glad I got "real" speakers!
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