Recent content by CJRananto

  1. C

    Hum in second 4 channel RCA input only on multiple amp system

    I have a problem and cannot find a good answer/way on how to fix it. I am running an Alpine CDE-W265BT HU, 4 channel amp to two pairs of Polk component speakers, one channel amp to Polk 12"sub. Both amps are being fed from HU through RCAs and right side of vehicle. Amp power cords are on left...
  2. C

    Engine whine and ground loop fixes... take two

    Thanks. Will do.
  3. C

    Engine whine and ground loop fixes... take two

    Amps are grounded separately on sanded down metal (floor under seat bolt front, floor under seat bolt rear). HU separate ground wire to firewall. Was told that I should ground my amps to battery instead of floor due to way new cars are made. Suggestions. I have a 2009 Sienna. BTW. Thanks...
  4. C

    Engine whine and ground loop fixes... take two

    I have the same issue. When I have just one pair of RCAs plugged in, there is no noise. But as soon as I plug in the other set, there is noise. Doesn't matter which goes first. Seriously puzzled. Did you ever resolve this?
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