High pitched noise coming from amp on start up

[KileBillyV]

I recently got a sub+amp+loc installed and whenever I start up my truck and it’s cold, the amp has a high pitched noise for about two minutes and it slowly goes away. The amp and Lc2i are next to eachother under my drivers seat.

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[Jimi77 5,000+ posts]

Cold weather can affect caps in noise filter circuits.

 

[KileBillyV]

Cold weather can affect caps in noise filter circuits.

Will it cause issues?

 

[Jimi77 5,000+ posts]

Will it cause issues?

Maybe/maybe not. First it's just a guess, but components can change value with temps and this could be normal. Could also be a sign of a cap on its way out. Could be a cold solder joint too.