Ok the trick at the MACH system is that there is a "Data Cable", which provides the signal to the speakers. It provides the signal to the speakers as RCA outputs done on an after-headunit… It will provide a much stronger and cleaner signal and then taper off a lead…
This is what my trunk looks like currently with the JL 250/1 Amp, I hid all the wires behind the factory rack as you will see later…..
That Date Cable is located right behind the MACH rack…You can access it from the trunk of fold down the backseats either way you will have to lay on your back to do the work.
You need a LINE OUT CONVERTER to transmit the signal to your subs through RCA cables. What you need to do is splice into the following wires (2) black wires with white stripes and (2) black wires with green stripes w/ the white striped ones being negative… Make sure you keep the negative (-) on the converter to the same on the data cable…
Now if your amp has a signal sense feature you wont have to run any wire to the front other then the power cable. You didn’t even have to remove the radio to get everything hooked up. But if your amp doesn’t have a signal sense feature you will have to run a remote lead wire. Now I know it may sound simple but a lot of people don’t know were to run it or run it to the wrong place. The best place is under the dash to the fuse box into an accessory fuse
The factory Groumet on the driver side I'd recommend you use for the Power cable
