For the past month I have been tuning the ignition table for my turbo Mx6. Particullary the locations under boost. This was important to do correctly to avoid engine damage. I decided to put together a set of knock ears witch is quite inexpensive and easily done these days. What you need for this setup first is a wideband knock sensor. These are easily found on 2000year and later engines, inexpensive from GM engines. You will also need the connector. The hard part of this setup is attaching it to the motor. The stock knock sensor location of the KLDE is best placement for a knock sensor however the stock knock sensor screws into the location, while the GM sensor is bolt on.
This will require a special stud to be made.
What is required for Knock Ears:
After your knock sensor is on the motor you will need to tap into it with an aux jack to utilize knock ears. You will need a 3.5mm 3 wire female aux connector to tap into knock sensor. I say ” tap into ” because on my setup I wired the knock sensor the MS3Pro Evo+ and I am splicing my knock ears into the sensor, they can be used at the same time on the same sensor. If your ECU does not have knock sensor capability you can simply wire knock ears only to it.
Next you will plug a long aux cord into the female jack, and route the opposite end to inside the car, then plug that end into an aux amplifier, out from the amplifier to headphones of your choice.
Your knock ears setup is complete.
What are you listening for?
When you start your engine listening for the first time you will notice you hear the same sound of the engine, but as a mechanical mono sound. This is the normal sound, when you rev the engine its the same sound but now faster. What your listening for when it comes to knock is a change in this sound. Its described as rocks/marbles in a glass jar being shaken. The best I can describe the difference is, think of tapping on a desk with your finger, a steady tap tap tap tap, thats your engine idling. Now revving or accelerating, the tap of one finger speed increases in taps, but the volume is still the same. As you enter boost it should be like this but if you hear scratching behind the taps that’s what’s considered pinging/knock. The duration and speed of the scratching is the severity of the knock.
Here is the timing table I found safe on my engine so far:
IGN1A Coil Brackets for MX6 KL V6 
OpenAuto Pro 16