No, that is not too much. Even though it is only 12 volts, horns are inductive and can generate voltage spikes that can shock you. Not kill you but surprise you.

2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado