What do you think of pyramid speakers just 6.5"s and 6x9"s ??

 

pyramids are just cheap speakers.....personally i wouldnt buy them

 

Well considering it has nothing to do with safety or longlevity of anything important, they should be fine.

 

Yeah they are a "replacement" speaker, by no means high performance, but compared to stock Id say youd probably get a better full range, now how loud it will be is another question. Powered off the head unit? They are probably just fine