About a year ago -- for the Sonic - I gots one of those plug into the OBD2 port things - then insert the mini-disk into the player - enter "0000" for the code - remove disk --- then anytime ya-wanna see what's going on under the hood ( check on the squirrels ) --- an array of digital or analog looking gauges shows up on the screen ----
Once I get everything else sorted out ----- its on my list --