Quantity   Component name
1 × MacBook 2009-Present
1 × Arduino Uno
1 × Relay Socket 8 position Din Rail
1 × 12V Relay KRPA-11DG-12
1 × Jeep (Same theory should apply to any vehicle with an external starter solenoid) 1976 CJ5
2 × Jumper Wires W/ Alligator clips
8 × AA Batteries (or a different 12V source)
1 × TIP 120 NPN darlington transistor
7 × Wires