New owner of a 1988 RX7
 

1988 RX7 GLX 2+2 Fuel Injected
The car has been stored for more than 2 years until my dad and I rescued it from someone's backyard.
The body is in excellent shape and no rust, the interior is good shape, mag wheels are good....needs new tires soon.

Installed new battery, checked all fuses are OK...but no sign of life on the board?

Since the engine has not been started for sometime and completely dead.
Need your advise or tricks to jump start this beautiful car!

Thanks!