Pioneer Avic-90bt

[ncacoates 104]

Well guys my avic's outputs took a shit today. Have a horrible alternator wine no matter what i do and its putting my 1500d into protect. Plugged up the ipod to both amps with the car running and no problems with either amp. Ive tried everything from different rca's to different remote wires and nothing seems to work. you guys got any ideas?

[tech2332 3]

Same thing was wrong with mine at one point. It might be that the RCA Outputs aren't grounded.

How to test:

One thing you can do to see is temporarily, grab a piece of speaker/copper wire make sure it touches the RCA output shields (the shiny outside part of the connector) and the case of the HU.

If the noise goes away i would recommend soldering a piece of fused wire from the RCA output shield to the casing as shown in this tutorial.

http://bcae1.com/images/rca/temporaryrcashieldrepair.html

Edited June 3, 2009 by tech2332

[ncacoates 104]

thanks for the idea man ill have to give that a try. gotta give you a thumbs up on great help man!!

[ncacoates 104]

put the meter on the shields and the case, sure enough you were right man. No ground at all i guess the internal fuse popped so ill just fix it like mentioned above.

[B7L|BL4Z3R 4]

that repair is badass

[ncacoates 104]

Little bastard gave me hell but i found it hiding all the way on the bottom of everything.

[jrod1050 5]

alot of pioneer units have that problem. my premier 860 mp had the same problem