040 hardtop turbo
You have the same head unit so I would imagine so.Are you sending speaker-level output to the amp? The amp expects line-level signals.
I'm exhausted..I officially regret ever finding this stupid thread. It's been more of a punishment lol. I very cleanly re-pinned the ground to Pin#11 instead of #12 on the Metra 70-8112 for the RCA's. Result was 10 times worse.Also, I don't know if you guys noticed, my Metra 70-8112 harness uses pin 12 as the ground shield for the 4 line-out RCA pins, but that is incorrect. Pin 12 on the factory harness is the "fade" signal to the stock amplifier, so I removed pin 12 on the Metra harness and connected that wire to the black ground wire on pin 11.
Pin 12 is another ground, signal ground. Maybe you have a wierd integration harness. I suppose you can try 12 instead of Pin 11. It will or will not work. Pin 11 is the "common" speaker ground.
After more detective work, in Stu’s little ms paint image he has the RCA ground going to #12 even though Ishii’s schematic shows #11. So Metra’s default configuration was correct, which makes sense. Note that Stu himself may be oblivious of this because he asserts somewhere early in the thread that it should go to #11 lol.
Question.. why in his images, does Stu appear to have the ground wire (#11) from his metra 15-pin adapter (which goes to R6) spliced into the ground from his HU going to the chassis? (Ishii says just ground the HU straight, so does his schematic) Its the pics that show this but he contradicts himself buy saying that ground wire is tied to his RCA's but also in his ms paint pic he says to wire it to the HU directly... too much inconsistency ughh!!
Here's a link to my harness..
note: I ran a new pin for #2 dimmer and omitted #8 the solid blue power antenna wire