jeepguync

for a 1 amp setup i dont think you need a cap even if you have a small car its got at least a 90 amp alternator the only negative result you aer gonna have is your headlights may dim somewhat. my last big system i had 4 amps for subs and 2 per door and no cap or extra battery and it did mid 50s legal the headlights almost shut down at night but it never caused the amp to cut off. it could be a grounding issue i doubt it but its possible.