I am in the middle of a full install on my '06 C230. I thought the Rockford 3sixty could always be used as an output for a remote turn on. Turns out it's only if the factory headunit is a voltage offset type. I have no way to test this since the car is all apart. Anyone know? Or can anyone check theirs out for me?

Assuming you have a factory head unit (non bose type)- get out your multitester. Turn the stereo on, place the negative lead on a ground and the positive lead on any speaker wire (positive or negative). It should read 6 volts. If it gives any other reading or no reading at all- it's not an offset voltage type.

 

I don't know if this helps, but I can confirm that the sub-woofer amp on the '07 ML350 with the Harmon-Kardon system is a DC output, bridged design so +6 vdc appears on each of the four (the sub is a dual voice coil unit) output leads when the system is on. I could have used the presence of DC as a "turn on" signal but I chose to tap into the antenna amplifier supply lead instead.

- FD

 

that's certainly a step in the right direction- thanks

 

hook up the wires you wil be fine, don't forget to set up the jumper inside to the 12v out position.

 

Already wired it up last night and continued on with my install.