June 5, at 9: I am so thankful for your Blitz videos and practice exams. July 17, at 6:

Two holes needed to be drill in the grill to mount the air horn bracket to. Unfortunately I still have no solution — one Iphone 5 [my private one] works just fine but not the other [my business phone]. Slab Bulkhead says:

The trigger wire for the relay, the wire for the horn solenoid and some quarter inch tubing for the gauge was feed through the cabs firewall. This may work on older versions of I-phone, however for the I-phone 5 pardon the pun , the steps are bass ackwards! The decision to face the horns vertically, with the trumpet opening facing downward is a great decision.