tach in Echo.
I just put one in today, Sunpro from Autozone. White face. $30. Easy to install. No cutting wires. On American cars the OBDII scanner port is just under the dash 16 pin connector. first pin on bottom row, left to right is for the tachometer the rest of the wires go the the fuse box. Ground wire attacth to good metal ground under dash. Fuse box note. Left half of fuse box are switched fuses, the right half are always hot. I hooked into the ACC fuse. look at fuse, left side of fuse is the side you plug in wire to make sure current travels through the fuse before it goes to your tach. If you hook your wire to the right side of the fuse and plug it in, the fuse will not protect your car. Be careful, Make sure you connect this right or you might screw up your car. I did a lot of research before I hooked things up. I have a 2000 Echo American Model. The wire for the lights can go to another fuse to make things easier.
Tach works great, Echo tach problem solved.