I have an 83 turbo with a digital dash manual trans and currently working on converting it to an analog 130 mph speedo. I have the new speedo set up with the 130 speedo. I also picked up a wiring harness. But it seems the analog wiring harness is missing some connections. (Cruise control, automatic light switch, system check, and also the speaker connections). Is there a certain wiring harness I should have gotten?