We have a E91 with factory 767 HiFi system. We are trying to add a sub in the cargo area.
I just bought a used Technic LOC100i add a sub harness with the Link 2 gain controller. JL MX300 mono-sub and Kicker 10" sub box. Nothing major.
I thought the installation wold be smooth but I'm having issues.
- I have traced the power and it all seems ok. I get 12V trigger signal to the amp and it light up. The trigger in to Link 2 and Trigger out to Amp works.
- Link 2 does not power up (Issue 1)
- With Technic harness connector and nothing else connected there is no sound from speakers, plug in the factory harness back and sound returns (issue 2)
I have checked the Technic website and LOC100i is the right harness for this car, but clearly its not even passing the standard signals through.
I have checked all the relevant fuses on the dash and it works. The power line from Technic harness to Link 2 has a mini-fuse, says 1A needed but all I had is 2A. I don't think this would matter to my Issue 2
Are there any fuses in the left rear quarter of E91? when we initially connected everyone we heard a pop, like a fuse. But we can't find any. our 12V signal wire was not secure and I've since soldered it onto rear 12V accessory socket power lead.
Any ideas?
pictures attached....
1st Pic - Factory Amp
2nd Pic - Factory Connector to Amp
3rd Pic - Technic PNP harness
4th Pic - connection between PNP harness and Link 2