I’m sorry to interject, but turbo and non-turbo have speedo location in different place?
so the wiring into the diff of non-turbo is the speedo?
Your response was confusing.
I haven’t had a speedo in over a year after I converted a non turbo auto to manual turbo(did it all myself), the shops are asking for 140/hr to play guessing games with my car. Said it could take up to 10 hours. That’s 1400 for 2 wires...