Wax.is

Do you need the 5v regulator with the 1000w system or is that just the 500

wayne613

https://mustangforums.com/forum/audi...lectronics-28/

..And yes, if your getting any standard wiring harness to put in an after-market stereo head-unit, you will need to bring the factory amplifiers turn-on voltage to 5v, 2.5v in 2010+. As you have a shaker 1000, that means you have to do the same for the rear, not just the front. Either via an in-line 1k ohm resistor, or a 5v regulator. Only 1 is needed still, as the same line off the 5v regulator (or in-line 1k ohm resistor) can be used to turn on both the factory turn-ons.

157dB

Both.

pinn

Both shaker units require adding the 5v regulator unless you buy the PAC unit. The PAC Units have their own requirements for Mustang installations, check their website for wiring/diode details if you have the PAC.

Wax.is

Thanks, very helpful.