Nothing sounds stupid unless you know better and you refuse to admit it because of ego. So in other words 88.61% of anything said on this entire forum is stupid. Oh, and saying "like" 5 times in 2 sentences might prequalify…..so make sure you slow down on that a little.
$450 would be best spent on the one thing you already have, but could use a much better version of……….a New Source Unit, Dash Kit, Wiring Harness and Antenna Adapter (if needed).
A really good head unit for the price (now that they are a few years old and readily available on
eBay for like $200 or less…………Pioneer DEHP9800BT. That unit is excellent if you absolutely have to have one of those ancient CD Player thingies. If not, look for a nicely equipped Mech-less Source Unit. They operate, as you may have guessed, completely without a mechanical drive. They don't take CDs, just USB, BlueTooth, AUX in, RCA in etc. Look for one specific feature……24Bit, 192kHz DAC! If they don't have that, it won't play the best files. Make sure that it'll read FLAC files.
Even with factory speakers, an upgraded source unit will make a noticeable difference in sound quality and volume capability.