RCA interference?

[Dirtrider4eva 10+ year member]

today after some driving, i noticed my front left speaker/tweeter was not working, and when i turned subwoofer off on my hu, it still played. well i turned the car off, went to the amps, and whenever the rcas to the speaker amp touched the amps rca terminals, the sub "thumped" a little..

i was confused, so i went to HU, checked all rcas, un plugged, re plugged, and re connected them, turned car on, and everything was fine.

anyone know why this would happen though? the two rca cables are run on different paths.

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[Dirtrider4eva 10+ year member]

happened again today. going to try a different RCA set. no input from over 100 views?

 

[PaulD 10+ year member]

hard to understand what you are asking but if you unplugged and plugged back in the RCA's while the stereo was running you could easily have damaged something - don't do that. Doesn't matter which way you run the cables for this problem, they are "attached" to the same headunit on one side and the same amp on the other.

 

[Dirtrider4eva 10+ year member]

this i know. never would "hot swap"

i found the issue.

apparently FL rca to speaker amp doesnt like to cling on extremely tight. adjust the fins, and not it does. im assuming the HU was re routing the voltage to sub, although the rca was grounded, the signal wasnt getting passed.