If that is indeed a picture of your dash, the previous owner may have had the AMP gauge converted to a VOLT meter. Even if your AMP gauge is disconnected the needle would normally remain in the center position. The needle in the picture is off to the left which is where someone would expect it to be if it had been converted to a VOLT meter and the key was off..... or it was never connected. The tach on my 1967 Barracuda has only two connections. A gray signal wire that comes directly from the distributor (through the bulkhead connector) and a red power wire attached to a spade lug. I'll look for a picture.
