Originally Posted by rovero
As the drawing shows the yellow, yellow/blue and blue/mauve wires are on different pins bike side vs trunk side. I also thought that the colors were the same on both bike side and trunk side and were just a straight connection. I can only say when I wired to the trunk side I had no noise and complete stereo separation. When I wired on the bike side I had noise and lack of left/right channel control. I used part #67 switched stereo music lead.
Hi, rovero. (Sorry for the slow response--been travelling.)
The wires aren't on different pins. The drawing is showing them with respect to the side of the connector. In other words, the wire that is to the immediate right of the green dot from the back of the left hand (bike) side is located to the right of the green dot from the back of the right hand (trunk) side. But it's the same color wire.
I verified this on my bike. The (for example) blue/mauve wire that goes to a particular pin flows through the connector and stays the same color on the other side.
Originally Posted by jwd98056
I do not believe the Autocom has any audio isolators built in. They have always sold isolators separately. Back when the Pro 7 was being sold Part 56, Part 57 and Part 58 were all audio isolators for GPS, Radar and Cell Phone integration. I have had my new Active-Plus apart to modify it and there is nothing on the circuit board that looks remotely like an audio transformer. Goto the Autocom site product page, here, and search for the word "isolated". There are seven different isolation adapters that they are currently selling.
See, the part that plugs into the Pro7 (part 66, now 1319) and is wired to the speaker leads looked to me like it may have had isolating transformers on it. But since the circuit boards are encapsulated, I really don't know. I looked at their site, but don't see something that seems to be intended to work with my bike which already has the part 66 (now part number 1319) onto it. And this part even says
that it "protects the system from noise."
However, the thing that still puzzles me is why the noise goes away if the speakers are in the circuit even with the radio off!