Guitarshredder7
CarAudio.com Newbie
Hey guys. I need some help. I’ve been battling alternator whine for several months. Basic rundown:
Android 10 inch head unit (wanted it for GPS app capabilities, noise was present with OEM head unit as well)
Kicker 4 channel speaker amp
Kicker mono sub amp
Alpine type s speakers all the way around
Alpine type r sub
Running power directly from battery
Ground for both amps is to a clean chassis bolt for the rear seat. Took a multimeter to the hot on the amp to the ground with engine off and it read 12.46 volts steady. Same with subwoofer amp
What I’ve tried:
Noise isolator before and after RCA’s
Tried different RCA’s
Tried running RCA’s outside of vehicle
I’ve also tried taking the radio ground to the metal behind the dash as well. No luck.
Noise is not present with no RCA’s connected to amp. As soon as I hook up an rca cable to the amp the noise immediately comes back. Even if the rca is completely outside the vehicle. Even with a nice brand new shielded set.
Vehicle is a jeep gladiator. People with similar setups report no issues. Only one other instance on the forums with this issue and it was fixed with an isolator.
I’m running out of ideas and I’m ready to pull my hair out. I know my equipment isn’t the best; I wanted something better than factory as my money goes into the overland and off-road capabilities more than into audio.
Thanks everyone!
Android 10 inch head unit (wanted it for GPS app capabilities, noise was present with OEM head unit as well)
Kicker 4 channel speaker amp
Kicker mono sub amp
Alpine type s speakers all the way around
Alpine type r sub
Running power directly from battery
Ground for both amps is to a clean chassis bolt for the rear seat. Took a multimeter to the hot on the amp to the ground with engine off and it read 12.46 volts steady. Same with subwoofer amp
What I’ve tried:
Noise isolator before and after RCA’s
Tried different RCA’s
Tried running RCA’s outside of vehicle
I’ve also tried taking the radio ground to the metal behind the dash as well. No luck.
Noise is not present with no RCA’s connected to amp. As soon as I hook up an rca cable to the amp the noise immediately comes back. Even if the rca is completely outside the vehicle. Even with a nice brand new shielded set.
Vehicle is a jeep gladiator. People with similar setups report no issues. Only one other instance on the forums with this issue and it was fixed with an isolator.
I’m running out of ideas and I’m ready to pull my hair out. I know my equipment isn’t the best; I wanted something better than factory as my money goes into the overland and off-road capabilities more than into audio.
Thanks everyone!