Replacing premium sound head unit

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Oct 15, 2005 | 05:40 PM

nuts4hotwheels

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From: Webster, TX

Replacing premium sound head unit

I POSTED THIS THREAD IN THE AUDIO SECTION, BUT THOUGHT THAT I MIGHT GET MORE SPECIFIC HELP IN THE VAN SECTION.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

Last edited by nuts4hotwheels; Oct 15, 2005 at 06:39 PM. Reason: Clarification

Oct 15, 2005 | 09:48 PM

pfogle

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Joined: Feb 2003

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From: Oak Harbor, OH

Okay, I had the same problem. Only fix is to run new wires to the speakers. The factory system used a common ground on the input to the amp, and the pioneer amps overload and shut down.

Oct 16, 2005 | 07:12 AM

nuts4hotwheels

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From: Webster, TX

I have been thinking about that, I was figuring that I could just hook the stereo output to the speaker wires after the amp (bypassing amp).

Oct 16, 2005 | 01:32 PM

nuts4hotwheels

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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.