new head unit, amp install := No AM reception!

[Gifford]

I just finished an elaborate (for me) stereo upgrade which consisted of a new pioner 1. 5 DIN head unit, XM radio, new component speakers(front and rear) powered by 2 amplfiers mounted behind the rear seat on a freshly carpeted, sound deadened back wall of the cab. Everything is hunky -dory save for the fact that ALL AM stations are completely blocked out by a high pitched whine which I assume is related to alternator whine. I attached the new head unit to the factory wiring harness only for power/ground via a Scosche wiring harness. (the OEM speakers are abandoned). CD, XM and FM seem fine, any ideas?



I miss my talk radio.....

 

[JLinder]

Two things come to mind right away:



1. Did you hook up the ant. to the deck? (prolly so)



2. How did you run the power and RCA's to the amp? If the power cable and RCA's for the amp are routed next to each other, you could have some alt. noise. I always route the power cable on the opposite side of the hump from the RCA's to help avoid this.



If none of the above, then you're beyond my technical abilities.

 

[Gifford]

interference

could the amp remote power on wire cause it?? the small one from the deck to the amps, which triggers the solenoids is near the rca cables, the power cables are on opposite side of cab...

 

[JLinder]

I don't think the little turn-on wire could do it. Boy, I really don't know. I guess your FM works like a champ? Is it possible your new deck just doesn't pickup AM like the old one did?

 

[Idaho CTD]

A stereo guru friend of mine said that it is your antenna ground that is the problem. He said to check the contact with the hood where the antenna attaches or strip one end of a wire and wrap it around the outside of your antenna connector (the ground) and push it back into the deck. Attach the other end of the wire to ground.



Hope this help

Nathan

 

[Gifford]

that was it-among other things

The antenna ground was only part of the problem,didnt push it all the way in but then I still had horrible interference, gave up, moved the truck OUT of the garage, came back today to finish other parts of the install (XM radio antenna routing), working on the truck in the driveway I notice there is no more AM interference...

DOH! the 8 flourescent tubes directly above my truck when parked INSIDE the garage completely wiped out AM reception... .



Thanks for all the tips!

 

[JohnMcIntyre]

Another ICE bomber

Nice to see another ICE Bomber on the TDR - other truck details in the profile below.