Probably need to stick to '96/'97 model year, '98 and up are 3rd generation.
Wiring should be plug and play and yes tach wire should be there
4cly or V6 won't matter for tach in these years, the computer sends out the tach signal, and computer is for 4cyl.
In older years the tach would have a switch on the back for 4 or 6
If you have a manual then you can take your blank insert to replace automatic shifter display, and visa versa.