My '96 883 hugger had a tach speedo combo. The speedo went out and I got the replacement speedo which was a plug and go. My speedo was hard wired. So, I figure I'll just go with the new speedo and bracket and forget about putting the tach back on. I rewired the new speedo per service manual into the new deutsch connector and tried to plug it in, and it wouldn't go. If I held it in tight by hand and turned on the ignition all functions worked, but the deutsch connector wouldn't lock, nor would the pins from the speedo stay in the holders in the male end. I looked at the female pins on the old speedo and they are BIGGER. So, I should have done what I had planned to do fron the git go, cut and splice. At least I'll have a tach again. If you have plans to replace your speedo, and you have an older bike, the newer electronic speedos will work but it appears you'll have to splice the wires, or splice on the old bigger female receptors from the old speedo to make the 12 pin deutsch connector work. signed, Starting over.