Issues on amps after installing Tiffany Style RCAS

[yayo86 1]

Both my amps were working fine “twisted sounds 150.4”, but since one of the rcas outputs broke off I decided to change all to Tiffany style rcas. My issue i’m having now when I try to adjust the fader on HU to front the rear speakers still play but little lower & vise versa & balance is the same issue. Also when I turn on my vehicle it has engine noise through speakers now. The single solder between ch1,2 & 3,4 is + & the duals above them are grounds for 1,2,3,4.

[Aaron Clinton 2,372]

Any chance a new joint is weak, or anything else got damaged on the amp?

[yayo86 1]

Have no idea what happened, solder looks good. I hope I didn’t over heat the boards on both amps and damaged them.

[///M5 2,833]

Check your solder joints

[yayo86 1]

Gonna have to check them out. It’s strange how both amps have same issue. Also how theres a static sound when moving RCA plug on amp RCA input.