Hallo…
I’m thinking about upgrading the sound system in my 2016 Kia Optima SX Turbo and found out that Infinity speakers are an option. Can I install them myself, or is it trickier than it sounds?
Has anyone here done this? Any tips for the install, or should I just let a pro handle it?
In anticipation…
The music quality of the sound system 
in your Kia Optima SX Turbo can be greatly improved by adding Infinity speakers.
Make sure the Infinity 
speakers you’ve selected fit into the Optima’s mounting slots. To ensure compatibility, measure the sizes of the current speakers.
Make a decision on whether to hire a professional or install the speakers yourself. It’s advisable to leave automotive audio installation to the professionals if you’re not comfortable doing it yourself.
Assemble the required instruments 
, including a multimeter, pliers, wire cutters, and screwdrivers.
Using the included brackets or adapters, 
install the Infinity speakers in the appropriate spots.