pulsing dash and headlights
 

Hello, so i installed the trackbox from geralds projects on my car, it just plugs into a connecter for the canbus so i wouldnt think it could really short anything out. i did remove the accessory connector for the steering wheel and replug it aswell in this time. Car gets power but wont go into accessory mode or even attempt to start. Not sure where to Start with trouble shooting this? anyone got any suggestions, Thanks. :bonk::bonk::(

first step is to check fuses, under the hood, and under the dash, drivers-side floor board.

Then, after you check all the fuses, I suggest you return your system to the way it was before you started your modifications and see it runs proper.

Pulsing lights when accessory is on typically means the battery has a low charge.

Or alternator.
Or regulator.
The first step is to check voltage at the battery though.