How to install a amplifier on mazda 3

I found a bit of space at the rear of the head unit compartment that nearly perfectly fit the PAC module. I did some restructuring to the plastic in the rear with a needle nose pliers and was able to fit the module in quite snug. The other side of the PAC module equation is power, so I went ahead and spliced the power wire for the PAC module into the wiring harness. I know I had heat shrink tubing at the time… Next I had to get the amplifier wired up, the power was easy enough to run from the battery as the positive terminal has extra connectors for just this reason.

I was able to find a grommet that had some extra wiggle room and squeezed the power line through it and thus through the firewall. Otherwise you risk the wire coating rubbing through and possibly starting your nice car on fire. I ran the power wire along the door trim, and then ran the stereo wires from the amp to the sub in a similar fashion. The bolt that holds the passenger seat to the body of the car on the inner side made a great ground and the plastic cover for it hides the wire pretty well to boot.

Hi Justin! Such a fortune I bumped into this article! I was happy to see I was just doing the same installation today the same way! I did however face problems with the PAC module. Could I ask which colour of the wires did you splice to be used as a remote? How did you make the module work? I believe I used the blue-white wire you referenced from the PAC module. The switched power wire sends power to the stereo once the key is turned on, this is probably one of the orange wires the runs from the original brown Mazda plug to the back of the stereo.

Switch the ignition to ON engine off. Measure the voltage at VSS connector terminal A harness-side. If there is a Power Steering Power steering is only operable when the engine is running. If the engine is off or if the power steering system is inoperable, you can still steer, but it requires more physical effort. If the steering feels stiffer than usual during normal driving or the steering vibrates, consult Voice Recognition Learning Function Speaker Enrollment Type A The voice recognition learning function enables voice recognition appropriate to the characteristics of the user's voice.

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