engine noise when AVIC-U250 is hooked up

Posted Jul 25, 2013 · 18:20 UTC#1

I installed an AVH-X5500BHS a few weeks ago. Everything is working fine. I now installed the AVIC-U250. Once the nav module boots up, it creates a high pitched engine whine Anyone experience this before? I tried a new U250 and a new RGB cable, tried a new ground for the nav module, and tried in line power filters, nothing works.

Posted Aug 04, 2013 · 00:03 UTC#2

are you able to use a bypass and the u250? also can you still display video and use the u250?

Posted Sep 30, 2013 · 14:58 UTC#3

I installed an AVH-X5500BHS a few weeks ago. Everything is working fine. I now installed the AVIC-U250. Once the nav module boots up, it creates a high pitched engine whine Anyone experience this before? I tried a new U250 and a new RGB cable, tried a new ground for the nav module, and tried in line power filters, nothing works.

I have the same problem, any luck getting rid of the engine noise?

Posted Oct 12, 2013 · 23:15 UTC#4

check your amp HPF, i had that happen to me until i turned it off

Posted Dec 07, 2013 · 16:00 UTC#5

I use AVH-X8580BT with a AVIC-U250 and I'm having the same problem (also happens with the AVIC-F220). This noise is not coming from the installation or vehicle. This is a flaw in the RGB input of the new devices from Pioneer ("X" models).