sorry to bump up this old thread - were you able to confrim if you needed the mostHur box at all?

from what i can see , your outputting analog audio outputs via the. brown. (middle) iso connector - while there is a MOST connection to ur pcm, i believe it is for mostLoop purposes (cd changer related i think), but its not for sound.

 

really hate to open this and ask but where did you get ground/battery/ACC for this damn most decoder..they are horrible with support and I’m totally confused where these tap into.

 

These should be tapped into the outputs of your CANBUS adapter. The adapter creates the ACC output and the 12v/ground circuits are available from the original PCM plug. Does your CANBUS adapter have black, yellow, and red wires coming out of it?

 

Finally got mine wired, was able to find all the right spots to connect, now I’ve got a really annoying scenario that happens ever so often. The audio just stops working from either radio or carplay, I can hear the volume control beep up and down when I move it on the dial, no music or sounds otherwise. Only solution to make it work again is a hard boot or reset which results in this disgusting loud Pop from the speaker that is insanely loud..has anyone experienced that, and have a work around to just get the audio working without the reboot? I feel like I remember reading about a workaround I just can’t find it!

 

None of the aftermarket options have a direct port for the MOST fiber optic plug. You have to use a MOST->RCA adapter that usually comes with the new radio (or buy one separately).