I'm looking at mounting my V1 to my Ducati ST2, and wiring it into my headset communication system so I can hear the beeps and braps.
The standard approach is to use the remote audio adapter, but I'm trying to minimize the number of little boxes that I have to mount to the bike.
JM makes a cable to eliminate the remote audio adapter and hardwire power adapter:
JMSR-AC29 Product Information
This is for use with the JM Integratr IV comm system. My comm system is different but I could adapt this if needed.
I'm trying to make my own however. If I read this thread correctly:
V1 Ports - Wiring Pin Out Schematic
Then pins 2/4 of the cigarette lighter adapter AUX port, or the same pins on the hardwire adapter AUX port, should be audio. I tested, bridging these pins with a 1k resistor does give the same effect as holding the mute button, so I'm pretty sure I've ID'ed the right pins. But when I feed them either directly to headphones, or to a line-level input to my comm system, I just hear some digital noise, and the V1 doesn't boot. For the line-level input, I ran pin 4 to the tip and pin 2 to the ring of the 3.5mm jack, since the ring is typically ground/return.
1. Does the audio/mute signal really carry the audio from the V1?
2. Is it line-level or headphone/speaker level?
3. Am I somehow picking the wrong pin pair?