how does toyota ground their amps? i am searching for a buzz in my speakers and it could be a ground issue but when i look for the amps ground i don't see one. but there are four bolts holding the amp down and when i remove the last bolt the speakers crack real loud then cut out so I'm thinking the amp is the ground. could anyone shed some light on this topic?
amp ground
- Thread starter rockcrawlingyota
- Start date
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I can only comment from an LX470 perspective. My Mark Levinson amp was under the passenger seat. It was held down by 4 screws that went through some brackets and into the floorboard. It had it's own ground wire and the ground wire connector was screwed into the floorboard's raised metal lip that is just below the front of the seat cushion. Not on the seat itself, but under the seat.
Remove the 4 bolts that are holding the seat in, and it should be very easy to spot. I simply reused it when I put in the aftermarket amp.
Good luck.
- Thread starter
- #3
but whats weird is there is a brown wire connected to the bracket on the amp but when i disconnect it nothing happens.. so it must not be important?
You normally don't need/want multiple grounds. However, the amp chassis itself could be grounding itself when you drive the screws into the floorboard. In this case, removing the brown wire won't kill the circuit as the ground is the chassis screw. Will the amp power up if completely unscrewed from the floorboard, yet still having the brown wire screwed to metal lip?
I spend a lot of time with the engineers at Toyota, Nissan, and Denso. While they may not be as exact as perhaps the german auto folks, they are extraordinarily good. Everything they design in is "important", i assure you
- Thread starter
- #6
haha yeah anything toyota is badass.. i figured out the problem though thanks for the help