Hello, I'd like to reach out as well on a little dilemma I'm having after purchasing steering wheel controls for my unit. Didn't come with one but the aftermarket radio I bought supports it. The product came with the wiring that needs to be mounted to the clock spring (I only have the black wire on that plug before, which is for the horn), and I thought it should wire up directly to M02-R per the wiring diagram made available here. Can someone confirm whether the following approach is actually on the right track to get this working?
1) From the plug located on the back of the clock spring, it should connect to M02-R. Pins 4 and 5 is what I need in this plug
2) From M02-R, there should be a link to M11-B. I still have this port and my assumption is that I should tap in to pins 4 and 17 - is this correct? lastly
3) From M11-B, connect those tapped pins onto my radio's remote ports (I'm assuming they're ports 4 and 8 - do I also need to tap all the grounds of this port?)
Here's the diagram from my stereo (control port is where I connected pins 4,7, and 8 - not sure if I even need 7):
The illuminations of the steering remote works - but I can't set the buttons on my radio. I also tried running a test light on M-02R and M11-B, and am I correct to expect that pressing buttons on the remote while I'm tapped on to any of those pins should light up my test light? Maybe the voltage is too low, not sure
Any help will be greatly appreciated.
Worst case - is it possible that there's no wiring ready from the pin coming from the clock spring down to M02-R?
Thanks in advance.